As a further precaution, consider cleaning all accessible vent surfaces with an antibacterial cleaner each time you clean the inside of your vehicle.

On October 1, , Tenneco completed the acquisition of Federal-Mogul, a leading global supplier to original equipment manufacturers and the aftermarket.

In the future, the company expects to separate its divisions to form two new, independent companies: DRiV, an Aftermarket and Ride Performance company, and New Tenneco, a Powertrain Technology company.

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Skip Navigation Home. Find My Part. Products Light Vehicles. Support Technical Tips. Ignition Braking Filters. Installation Guides. Trouble Tracers.

Garage Gurus. Where to buy. About us. This creates our M. We then takes this ORANGE AND WTHIE filter media and insert it into our specially designed low moisture resistant cardboard frame.

ALL FILTERS ARE MADE TO THE EXACT SIZE YOU REQUEST PLEASE MEASURE CAREFULLY YOUR OLD FILTER OR THE OPENING WHERE THE FILTER GOES.

DUE TO THE FACT THAT YOUR FILTERS ARE MADE TO ORDER THERE IS NO RETURNS OR REFUNDS ON FILTERS. Forgot your password? Lost your password? Instead, our focus needs to be on indirect transfer of bacteria.

However, an air purifier can help to remove the bacteria from the air you breathe if the bacteria got there as a particle floating in the air indirectly.

How does the bacteria get there indirectly? The bacteria itself is certainly small enough to stay airborne. At around 3 μm we know that particles stay airborne for about an hour.

Thus, all of the bacteria we listed above could theoretically stay airborne for at least a few hours if not a few days. Instead, bacteria are contained within droplets. Thus, we need to consider the size of the droplet at least initially , not the size of the bacteria , when evaluating its behavior in the air namely how long it will stay airborne and the type of filter required to remove it from the air.

They also show that much of these droplets evaporates after they are coughed or sneezed out of the body - thus the droplets become smaller and smaller from the moment they leave the body.

These same studies also show that a single sneeze can produce as many as 40, droplets between 0. A single cough can produce as many as droplets equal to or less than 5 μm in diameter. At equal to or less than 5 μm, cough droplets can also stay airborne.

And, as we just showed, they can move around quite easily around the home. Doing something as simple as walking or opening or closing a door can move these droplets around the home. The question is - what happens when these droplets eventually come into contact with a surface? More on that next.

All these liquids dry up over time in most indoor environments. Because your home is much drier than the inside of your body. The problem here is that nobody really knows onto exactly which particles the bacteria latch onto.

In particular, the volume of particles deposited on and then detached from a particular surface is poorly understood. Our advice: assume anything is possible. The bacteria itself may become airborne or it may latch onto any type of particle to become airborne.

It, of course, becomes airborne via some type of disturbance — e. walking over carpet, jumping on a couch, etc. Again, little is known about this type of interaction. Again, we err on the side of caution: Assume anything is possible and therefore limit particles in general.

That size will be no smaller than the smallest bacteria — 0. The good news here is that no matter how the bacteria is presented and no matter what its size an air purifier equipped with a HEPA filter will be able to remove it from the air.

HEPA filter efficiency is usually given in terms of 0. Clearly, 0. Does this mean that HEPA filters are ineffective removing 0. Absolutely not. The 0. Particles larger than 0. Particles smaller than 0. Particles right around 0.

So rest assured that a HEPA filter will still be able to remove the smallest bacteria — around 0. An air purifier is specifically designed to be able to push large amounts of air through a HEPA filter. Installing a HEPA filter in an HVAC system will damage the system. In all fairness, an HVAC system usually services a whole house.

A single residential air purifier can only process air for a single room. We recommend CFM air purifiers as the best all-around performers on the market. These units process Cubic Feet of air per Minute. This is sufficient processing power for a room up to about sq.

If the room you need to service is larger than sq. we recommend running multiple CFM units. The best CFM unit — the best air purifier for bacteria - currently on the market is the Winix Disease causing airborne bacteria represent a serious health concern for many people.

This effectively doubles the rate at which the unit can process a given quantity of air in a particular size space. For example, using our original recommendation a single CFM unit can process all the air in a sq.

space with 10 ft. By using our special recommendation above instead you would need to install two CFM units in such a space. This effectively doubles the chance the air purifier has to remove any particular airborne bacteria particle from the air.

In fact, the majority of bacteria found in your home come from your skin and intestinal tract. Transfer can occur either directly — your skin on a surface — or indirectly — using the bathroom where fecal matter can become airborne.

Most of this bacteria is just not the nasty disease causing kind we discussed earlier. Bacteria love water. Again, most of the bacteria in the water is harmless and your local municipality assuming you live in the US is likely chlorinating the water that comes into your home which drastically reduces the likelihood of problematic disease causing bacteria being in the water.

Your home is surrounded by the outdoors. And bacteria are everywhere outdoors. Bacteria can enter your home through doors and windows but they can also enter via more subtle means — on you, your clothes, your shoes — anything you, your family, or your pets carry into your house.

nobody cares about them but everybody needs one. Frequently Asked Questions. How often should I change my filter?

Industry standard suggests changing your filter every 3 months, BUT… it depends! Many factors determine what cycle is best for you- pets, allergies, how often you run your HVAC system, etc. Some people choose to change their filter every 1 or 2 months. After installing your new Yoor Air filter, check it after one month.

Pull it out and shine a flashlight through from the coarse filter media side to the Downstream side. If you easily see the light shining through, you still have life left in your filter. If no light is passing through, your HVAC motor is having to work extra hard to push air through your filter, increasing your electric bill and reducing the life of your HVAC unit.

How do I install my filter? Yoor Air filters have no arrow like you find on traditional, crappy pleated filters. This side is installed downstream from the air flow or closest to your HVAC unit. One side is made of a very coarse filter media while the other side is a tighter weave. The coarse side catches the big stuff first while the tighter weave traps the small stuff.

Why don't I see a MERV Rating? it's only half the story. MERV stands for Minimum Efficiency Reporting Value as determined by the American Society for Heating, Refrigeration and Air-Conditioning Engineers ASHRAE. MERV uses a scale from To confuse us even further, The Home Depot established their own rating system, called the FPR or Filter Performance Rating system which ranges from and is color coded.

All of these ratings assume there is no air bypassing your filter. But, like water, air takes the least path of resistance so a disproportionate amount of air bypasses your filter, technically dropping the MERV rating to 0- YIKES!.

Yoor Air filters are designed to eliminate unfiltered air bypass and are the perfect balance between filtering ALL the air while keeping stress on your HVAC motor measured in air pressure resistance to a minimum. So yeah, we are talking SMALL! What are yoor filters made of? No, we provide something better!

Pleated filters need the extra depth for one reason- dirt accumulates on the surface of pleated filters. The extra depth increases the surface area and in turn, increases the service life of the filter. But what about that extra empty space? Just think of that extra space as an extension of your plenum.

How do I know what size Yoor Air filter to purchase? com with the dimensions. Make sure you let us know that these measurements are your TRACK dimensions. Send us an email at hello yoorair. com stating your filter dimensions. Clearly state these are your FILTER dimensions. How do I measure the correct size for my filter track?

The first is a rounded number like 20x24x1. This is the nominal size and is used to keep it simple for consumers. Since we do not have a conventional frame, Yoor Air filters are printed with the nominal size directly on the filter media. Can I make a single filter purchase? What do you mean my filter is SIDED?

To get the maximum life out of a Yoor Air filter, it needs to be installed in a specific direction. The downstream side goes closest to your HVAC unit. The different layers of a Yoor Air filter trap different size particles.

Trapping the big stuff first preserves the cleanliness of the next filter layer which traps the next smallest particles, and so on.

The incoming air referred to as the return air is the dirtiest air so it gets trapped in the outer filter layer with the loosest weave. The side printed with your filter size and downstream catches the smaller particles and is facing or is closest to your HVAC Unit.

While the precise molecular mechanisms of action against the different organisms used in this study are unknown, CHDG acts through the disruption of cellular membranes, which is why it is also active against enveloped viruses, such as the SARS-CoV-2 virus used in this study, but not non-enveloped viruses This broad mechanism of action means that this technology will be active against a wide range of microorganisms found to contaminate HVAC systems 4 , 20 , as demonstrated by the select model organisms used in this study.

The durability of the filters is also an essential component of the system. Neither of these is ideal for the majority of existing HVAC systems as they both require significant infrastructure upgrades.

In comparison, the technology we report here can be applied to existing filters and used in existing HVAC systems with no modifications. Unlike the novel polymer materials, treatment of filters with CHDG can be applied to any porous filter.

Therefore, the base filter material does not need to be modified and the treatment can be applied to all filters currently in use in HVAC systems We have also demonstrated that the CHDG treatment does not impede the existing air flow or fibre diameter of the filters when used in industrial air condensing units and that the technology is durable.

This level of compatibility with existing systems removes many of the barriers encountered when new technologies are brought onto the market. We have demonstrated a novel antimicrobial treatment for air filters which is applicable to porous filters across the HVAC sector.

Specifically, we have demonstrated that the treatment has no detrimental effect on rate of air-flow or fibre size of the filter, while also showing excellent antimicrobial efficacy against gram-positive and gram-negative bacteria, fungi and viruses. The filter treatments are durable throughout the existing maintenance life cycle of the filter and have been demonstrated to work in an operational environment.

All consumables were ordered from Sigma Aldrich unless otherwise stated. MK3 Filter samples were sourced from Pullman AC and pre-treated with a Chlorhexidine digluconate 0.

All reagents were purchased from Sigma Aldrich unless otherwise stated. MK3 filters and CHDG coated MK3 filters were imaged using a Zeiss AxioZoom.

V16 with top illumination using an LED ring and a Zeiss Axiocam mono camera. Each filter was washed 3 times in sterile type 3 water and dried in a 37 °C incubator overnight. After drying, each filter was imaged again at 3.

After drying, each filter was imaged both back and front, and in triplicate for each condition. Scanning electron microscopy was performed at an operating voltage of 1 kV, pA, SESI detector, using a field emission SEM Zeiss CrossBeam , Oberkochen, Germany on uncoated filter samples: local charge compensation was achieved using a nitrogen flood gun.

MK3 filters and CHDG treated filters were installed in an industrial condensing air unit and run for 6 h. The air flow rate was measured across the entire surface area of the filter using 12 coils each with an area of 0.

In order to best accommodate sample topography, delayed extraction was used for analysis with nitrogen gas flooding. The data acquisition and analysis was performed with SurfaceLab7 ION-TOF GmbH.

Both E. coli K BW and S. Samples were incubated at room temperature for either 1, 15, 30, 45 and 60 min.

The neutralising broth suspension was then serially diluted in sterile PBS and survival assessed by counting CFU after incubation for 18—24 h at 37 °C on LB agar. CFU in the original suspension were calculated. The C. albicans SC isolate was kindly provided by the host—pathogen interaction research group at the University of Birmingham, UK.

Single colonies of C. Antimicrobial efficacy of filters was tested exactly as described for the bacterial samples except for incubation on potato dextrose agar at 30 µC prior to CFU counting.

Untreated MK3 and CHDG treated filters were placed in separate 2 mL cryovials and 10 µL of viral stock added to each. The samples were incubated for 0. Finally, the media was removed and discarded and the cells were fixed with ice-cold methanol for 5 min.

Vero cells were washed in PBS and stained with rabbit anti-SARS-CoV-2 spike protein, subunit 1 CR, The Native Antigen Company , detected by Alexa Fluor conjugated goat anti-rabbit IgG secondary antibody Invitrogen, Thermo Fisher Scientific.

Cell nuclei were stained with Hoechst Thermo Fisher Scientific. Cells were washed with PBS and then imaged and analysed using a Thermo Scientific CellInsight CX5 High-Content Screening HCS platform. Infected cells and cell viability were detected by measuring perinuclear fluorescence above a set threshold determined by positive untreated and negative uninfected controls.

Automated quantification algorithms were developed with assistance from Dr Henri Huppert, Thermo Fisher Scientific, UK. The filters were then removed and their antimicrobial efficacy tested as described above.

To determine if any leaching occurred from the filter surfaces, filters were set up with a continuous air flow of 0. On the other side of the filter, filter paper was held in close proximity to the filter with air flow passing from the filter directly through both filter and then filter paper.

The filter paper was replaced every 24 h for 10 days. After 10 days, the filter was removed and stored in the dark. This process was repeated in triplicate. To determine the levels of chlorhexidine present, the filter paper and the filters were physically broken up with tweezers and incubated in deionised water for 16 h.

The filters and the filter papers were then removed and stored. Fluorescence was measured on a FLUOstar Omega plate reader at excitation nm. The filter extract was then inoculated with E. Untreated MK3 and CHDG treated MK3 filters were installed on board trains running on the UK rail network in standard HVAC systems.

The filters were used in the system for the entire 3 month duration of the filter maintenance cycle on the trains. Following removal from the HVAC system, filters were sealed into separate containers and shipped for analysis.

CFU on the whole filter were then estimated based on the sample size. Statistical analysis was carried out using SPSS. Where two groups were compared an independent t test was used to determine statistical significance. Where more than two groups were compared a One Way ANOVA was used with a Tukey posthoc analysis or for the comparison to the control, a Dunnett posthoc analysis was used.

Troko, J. et al. Is public transport a risk factor for acute respiratory infection?. BMC Infect. Article PubMed PubMed Central Google Scholar.

Goscé, L. Analysing the link between public transport use and airborne transmission: Mobility and contagion in the London underground. Health 17 , Edwards, N. Reducing COVID airborne transmission risks on public transportation buses: An empirical study on aerosol dispersion and control.

Aerosol Sci. Article ADS CAS Google Scholar. Shen, Y. Community outbreak investigation of SARS-CoV-2 transmission among bus riders in Eastern China.

JAMA Intern Med. Article CAS PubMed PubMed Central Google Scholar. Korves, T. Bacterial communities in commercial aircraft high-efficiency particulate air HEPA filters assessed by PhyloChip analysis.

Indoor Air 23 , 50— x Article CAS PubMed Google Scholar. Bluyssen, P. Article PubMed Google Scholar. Prussin, A. Sources of airborne microorganisms in the built environment. Microbiome 3 , Batterman, S. HVAC systems as emission sources affecting indoor air quality: A critical review. Article Google Scholar.

Deshmukh, S. Silver nanoparticles as an effective disinfectant: A review. C Mater. Balagna, C. Nanostructured composite coating endowed with antiviral activity against human respiratory viruses deposited on fibre-based air filters.

Park, K. Fabrication of silver nanowire coated fibrous air filter medium via a two-step process of electrospinning and electrospray for anti-bioaerosol treatment. Ju, Y. Bumpy structured nanofibrous membrane as a highly efficient air filter with antibacterial and antiviral property.

Total Environ. Article ADS CAS PubMed PubMed Central Google Scholar. Al-Attabi, R. Flexible and reusable carbon nano-fibre membranes for airborne contaminants capture. Article ADS CAS PubMed Google Scholar. Filtration and inactivation of aerosolized bacteriophage MS2 by a CNT air filter fabricated using electro-aerodynamic deposition.

Carbon N Y 75 , — Kim, S. Tannic acid-functionalized HEPA filter materials for influenza virus capture. Riordan, L.

Directly bonding antimicrobial peptide mimics to steel and the real world applications of these materials. Article CAS Google Scholar. Judd, A. Distribution and visualisation of chlorhexidine within the skin using ToF-SIMS: A potential platform for the design of more efficacious skin antiseptic formulations.

Attin, T. A new method for chlorhexidine CHX determination: CHX release after application of differently concentrated CHX-containing preparations on artificial fissures.

Oral Invest. Afshinnekoo, E. Geospatial resolution of human and bacterial diversity with city-scale metagenomics. Cell Syst. Chan, L. Commuter exposure to particulate matter in public transportation modes in Hong Kong.

Levetin, E. Effectiveness of germicidal UV radiation for reducing fungal contamination within air-handling units. Sibanda, T. Distribution and comparison of bacterial communities in HVAC systems of two university buildings: Implications for indoor air quality and public health.

Horve, P. Identification of SARS-CoV-2 RNA in healthcare heating, ventilation, and air conditioning units. Indoor Air 31 , — Jung, J. Langmuir 27 , — Zhu, M. Bio-based and photocrosslinked electrospun antibacterial nanofibrous membranes for air filtration.

Colloid Interface Sci. Bernstein, D. In vitro virucidal effectiveness of a 0. The secret to our antiviral air filter is in the coating… A NitroPep coated filter removes contaminants from the air and does not introduce new substances to the air. It works by capturing airborne particles which may contain pathogenic species and viruses and killing them.

A process called cell lysis ruptures the cell walls — imagine needles popping balloons — and the pathogens are then destroyed after contact. As well as killing airborne bacteria this technology has also been shown to be effective against fungi and viruses.

Biosafety Level 3 BL3 laboratory studies conducted at the University of Birmingham using test protocols similar to ISO have shown that a NitroPep-coated filter can kill over Antiviral Air Filters.

NitroPep's antiviral air filter could help to reduce the impact of Covid on your business. Partner with us to make your product antimicrobial. Read More. Class 3 laboratory studies have shown NitroPep's Antiviral air filters kill The science behind it… The secret to our antiviral air filter is in the coating… A NitroPep coated filter removes contaminants from the air and does not introduce new substances to the air.

Less labour-intensive and more cost-effective, learn more about the technology behind NitroPep's patented antimicrobial coating. Find out more. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits.

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BMC Infect. Article PubMed PubMed Central Google Scholar. Goscé, L. Analysing the link between public transport use and airborne transmission: Mobility and contagion in the London underground. Health 17 , Edwards, N. Reducing COVID airborne transmission risks on public transportation buses: An empirical study on aerosol dispersion and control.

Aerosol Sci. Article ADS CAS Google Scholar. Shen, Y. Community outbreak investigation of SARS-CoV-2 transmission among bus riders in Eastern China. JAMA Intern Med. Article CAS PubMed PubMed Central Google Scholar. Korves, T. Bacterial communities in commercial aircraft high-efficiency particulate air HEPA filters assessed by PhyloChip analysis.

Indoor Air 23 , 50— x Article CAS PubMed Google Scholar. Bluyssen, P. Article PubMed Google Scholar. Prussin, A. Sources of airborne microorganisms in the built environment.

Microbiome 3 , Batterman, S. HVAC systems as emission sources affecting indoor air quality: A critical review. Article Google Scholar. Deshmukh, S. Silver nanoparticles as an effective disinfectant: A review. C Mater. Balagna, C.

Nanostructured composite coating endowed with antiviral activity against human respiratory viruses deposited on fibre-based air filters. Park, K. Fabrication of silver nanowire coated fibrous air filter medium via a two-step process of electrospinning and electrospray for anti-bioaerosol treatment.

Ju, Y. Bumpy structured nanofibrous membrane as a highly efficient air filter with antibacterial and antiviral property. Total Environ. Article ADS CAS PubMed PubMed Central Google Scholar.

Al-Attabi, R. Flexible and reusable carbon nano-fibre membranes for airborne contaminants capture. Article ADS CAS PubMed Google Scholar. Filtration and inactivation of aerosolized bacteriophage MS2 by a CNT air filter fabricated using electro-aerodynamic deposition.

Carbon N Y 75 , — Kim, S. Tannic acid-functionalized HEPA filter materials for influenza virus capture. Riordan, L. Directly bonding antimicrobial peptide mimics to steel and the real world applications of these materials.

Article CAS Google Scholar. Judd, A. Distribution and visualisation of chlorhexidine within the skin using ToF-SIMS: A potential platform for the design of more efficacious skin antiseptic formulations.

Attin, T. A new method for chlorhexidine CHX determination: CHX release after application of differently concentrated CHX-containing preparations on artificial fissures. Oral Invest. Afshinnekoo, E. Geospatial resolution of human and bacterial diversity with city-scale metagenomics.

Cell Syst. Chan, L. Commuter exposure to particulate matter in public transportation modes in Hong Kong. Levetin, E. Effectiveness of germicidal UV radiation for reducing fungal contamination within air-handling units. Sibanda, T. Distribution and comparison of bacterial communities in HVAC systems of two university buildings: Implications for indoor air quality and public health.

Horve, P. Identification of SARS-CoV-2 RNA in healthcare heating, ventilation, and air conditioning units. Indoor Air 31 , — Jung, J. Langmuir 27 , — Zhu, M. Bio-based and photocrosslinked electrospun antibacterial nanofibrous membranes for air filtration.

Colloid Interface Sci. Bernstein, D. In vitro virucidal effectiveness of a 0. Andersen, B. Comparison of UV C light and chemicals for disinfection of surfaces in hospital isolation units. Control Hosp. Download references.

This work was funded by the Wellcome Trust ISSF award, Royal Academy of Engineering Award and an MRC Proximity to Discovery award. HJH and ZS are funded by a Medical Research Foundation intermediate career fellowship to ZS UKRI, Grant number MRFF-STAM-C The authors would like to thank NitroPep Ltd and Pullman AC Ltd for their support.

Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK. Rowan Watson, Morwenna Oldfield, Jack A. Bryant, Lily Riordan, Michael J. Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.

Advanced Materials and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK. Julie A. Watts, Morgan R. You can also search for this author in PubMed Google Scholar. prepared Figs. prepared Fig.

All authors contributed to writing the document. and F. revised and edited the manuscript. Correspondence to Felicity de Cogan. Author Felicity de Cogan is the founder of NitroPep Ltd. NitroPep Ltd provided materials for testing as described in the manuscript.

All other authors have no competing interests. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Open Access This article is licensed under a Creative Commons Attribution 4. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material.

If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

Reprints and permissions. Watson, R. Efficacy of antimicrobial and anti-viral coated air filters to prevent the spread of airborne pathogens. Sci Rep 12 , Download citation. Received : 18 August Accepted : 24 January Published : 09 March Anyone you share the following link with will be able to read this content:.

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nature scientific reports articles article. Download PDF. Subjects Antimicrobials Applied microbiology Environmental microbiology Materials science Microbiology. Abstract The COVID pandemic has demonstrated the real need for mechanisms to control the spread of airborne respiratory pathogens.

Introduction The risk of respiratory infection is increased in people using public transport and was noted to be sixfold higher in people who had used a tram or bus within 5 days of the onset of symptoms 1. Results Characterisation of CHDG modified filters There is an urgent need for technologies which can eliminate the reservoir of microorganisms on air filters and thus decrease airborne transmission of disease.

Figure 1. Full size image. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Discussion Previous studies have demonstrated that the spread of airborne disease is possible on closed systems such as public transport 4 , Conclusions We have demonstrated a novel antimicrobial treatment for air filters which is applicable to porous filters across the HVAC sector.

Materials and methods All consumables were ordered from Sigma Aldrich unless otherwise stated. Microscopy of filters MK3 filters and CHDG coated MK3 filters were imaged using a Zeiss AxioZoom. Scanning electron microscopy of filters Each filter was washed 3 times in sterile type 3 water and dried in a 37 °C incubator overnight.

You save. Unit 1 ea. Current Stock:. Increase Quantity: Decrease Quantity:. Filter Change Guide. Is it Time to Change Your Filter? If you have pets, change your filter every 2 months to prevent shedding and odor buildup. If you have young children, change your filter every months , as clean air is even more crucial when children are in your home.

Mold and Mildew Resistant Our antimicrobial system is a key component in improving indoor air quality IAQ. Trap All The Crap Literally Our extended sealing gasket stops dirty air from bypassing the filter. Dust Less, Cleaner Home The filter media layers "sift" dirt based on particle size.

Customer Reviews. Hi Andy, Thanks for the review and giving it a further test with your anemometer. Either way, thanks again for the review and we look foward to your monitoring feedback. Hey Renee! isn't silence golden, Meg? We hope our filters are still performing at the top-level for you!

Funny thing about air filters nobody cares about them but everybody needs one. Frequently Asked Questions. How often should I change my filter? Industry standard suggests changing your filter every 3 months, BUT… it depends!

Many factors determine what cycle is best for you- pets, allergies, how often you run your HVAC system, etc. Some people choose to change their filter every 1 or 2 months.

After installing your new Yoor Air filter, check it after one month. Pull it out and shine a flashlight through from the coarse filter media side to the Downstream side. If you easily see the light shining through, you still have life left in your filter.

If no light is passing through, your HVAC motor is having to work extra hard to push air through your filter, increasing your electric bill and reducing the life of your HVAC unit. How do I install my filter? Yoor Air filters have no arrow like you find on traditional, crappy pleated filters.

This side is installed downstream from the air flow or closest to your HVAC unit. One side is made of a very coarse filter media while the other side is a tighter weave. The coarse side catches the big stuff first while the tighter weave traps the small stuff.

Why don't I see a MERV Rating? it's only half the story. MERV stands for Minimum Efficiency Reporting Value as determined by the American Society for Heating, Refrigeration and Air-Conditioning Engineers ASHRAE.

MERV uses a scale from To confuse us even further, The Home Depot established their own rating system, called the FPR or Filter Performance Rating system which ranges from and is color coded.

All of these ratings assume there is no air bypassing your filter. But, like water, air takes the least path of resistance so a disproportionate amount of air bypasses your filter, technically dropping the MERV rating to 0- YIKES!. Yoor Air filters are designed to eliminate unfiltered air bypass and are the perfect balance between filtering ALL the air while keeping stress on your HVAC motor measured in air pressure resistance to a minimum.

So yeah, we are talking SMALL! What are yoor filters made of? No, we provide something better! Pleated filters need the extra depth for one reason- dirt accumulates on the surface of pleated filters. The extra depth increases the surface area and in turn, increases the service life of the filter.

But what about that extra empty space? Just think of that extra space as an extension of your plenum. How do I know what size Yoor Air filter to purchase? com with the dimensions. Make sure you let us know that these measurements are your TRACK dimensions. Send us an email at hello yoorair.