4 Advice to Choose a Purifier Supplier

Portable room air purifiers are designed to filter the air in a single room. They&#;re separate from whole-house air purifier systems and air filters, which are integrated into a home&#;s heating, ventilating, and air conditioning system and designed to clean the air in the entire house.

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Think of a room air purifier as a supplemental unit, like a space heater in the context of a whole-house heating system, explains Misha Kollontai, who oversees testing of air purifiers at Consumer Reports. While your house might feel sufficiently warm, you might have a particularly drafty room with old, poorly sealed windows; placing a space heater there would make the room more comfortable. Similarly, he says, "a whole-house system will work at filtering all the air that passes through it via the HVAC system. But if you&#;re sitting next to a fireplace in the living room for extended periods of time, a room air purifier there may not be a bad idea." A room air purifier may be worth it too, say, in a bedroom, if you sleep with your pet.

Different air purifiers work using a range of technologies. A few are helpful. Others are ineffective, or even potentially harmful to your health.

Mechanical filters: These purifiers use fans to force air through a dense web of fine fibers that trap particles. Filters with very fine mesh are called HEPA filters. While they work on microscopic particles, they can also remove larger particles (including dust, pollen, and some mold spores) when they&#;re suspended in the air. (Some filters are labeled &#;HEPA-type&#; or &#;HEPA-like&#;&#;these have not been certified to meet the requirements of a true HEPA filter but may still perform adequately in our tests.) Mechanical filters don&#;t help with gases or odors. And they can be expensive to maintain. Mechanical filters need to be replaced every six to 12 months; they can cost upward of $200 per filter but typically cost no more than $80.

Activated carbon filters: Unlike mechanical filters, these filters use activated carbon to capture certain types of gases, including some odor-causing molecules. But they&#;re not particularly effective against formaldehyde, ammonia, or nitrogen oxide. Because activated carbon filters don&#;t combat particles, many air purifiers will have both an activated carbon filter and a mechanical filter. Activated carbon filters get saturated faster than mechanical filters, though, and require replacement more frequently&#;every three months, as opposed to every six to 12 months for mechanical filters. Make sure to budget for replacements accordingly: Activated carbon filters usually cost up to $50 each. 

Ozone generators: These machines produce ozone, a molecule that can react with certain pollutants to alter their chemical composition. This can result in dangerous indoor air quality, and CR does not recommend these types of air purifiers. Makers of ozone generators often claim that the devices emit safe levels of ozone, but in the past, our tests found that even at low settings, some ozone generators quickly exceeded the Food and Drug Administration&#;s limit of 0.05 parts per million for medical devices. Plus, studies reviewed by the EPA have shown that low levels of ozone&#;the chief ingredient of smog&#;don&#;t effectively destroy indoor pollutants. Research also shows that ozone has been linked to decreased lung function and increased risks of throat irritation, coughing, chest pain, and lung tissue inflammation. Ozone exposure might also worsen asthma, emphysema, and bronchitis.

Electrostatic precipitators and ionizers: In these electronic models, particles in the air become charged so that they stick&#;magnet-like&#;to plates on the machine or to nearby surfaces. CR doesn&#;t typically test electronic air purifiers nor recommend them because they can produce ozone.

Ultraviolet germicidal irradiation (UVGI): Some manufacturers claim that their air purifiers kill airborne viruses, bacteria, and fungal spores with UV lamps. But they might miss certain bacteria and mold spores that are resistant to UV radiation. To work, the UV light must be powerful enough and the exposure must last long enough&#;minutes to hours, rather than the few seconds typical of most UVGI air purifiers&#;to be effective. CR does not test UVGI technology, though some mechanical air purifiers we test may have the added function.

Photocatalytic oxidation (PCO): Some air purifiers use ultraviolet radiation and a photocatalyst, such as titanium dioxide, to produce hydroxyl radicals that oxidize gaseous pollutants. Depending on the pollutant, this reaction can generate harmful byproducts, such as ozone, formaldehyde, nitrogen dioxide, and carbon monoxide. CR does not currently test air purifiers with PCO technology. There have been few field investigations exploring the effectiveness of PCO air purifiers, but one laboratory study, conducted by researchers at Syracuse University in New York, reported that the devices did not effectively remove any of the VOCs typically found in indoor air. 

Photoelectrochemical oxidation (PECO): This variant of PCO emerged in from the manufacturer Molekule. The Molekule Air purifier did not score well in our tests for dust, smoke, and pollen removal. Since then we&#;ve also tested the more expensive Molekule Air Pro, which performed better at removing contaminants on its highest setting but did not impress in CR&#;s other air-purifier test categories, nor did it rate well in our CR member survey. 

To see how well these machines clean the air, we inject smoke and dust into a sealed chamber and use a particle counter to measure the change in air particle concentration in the room as the test model runs for 15 minutes. 

We test using particles as small as 0.1 micrometer and up to 1 micrometer, a range that includes dust mite allergens, cat allergens, smog, smoke, and atmospheric dust. We don&#;t measure for particles larger than 1 micrometer, such as pollen, because any air purifier that scores well in our tests should also be able to handle larger airborne particles.

Because most air purifiers have several speed settings, we test for dust and smoke removal both on the highest speed and at a lower speed that runs at a noise level no louder than 50 decibels. We also measure noise levels at every speed setting that a machine has. And because air purifiers must be running at all hours to be effective, we calculate annual operating costs, which include filter replacements and energy use to run the machine 24 hours a day for an entire year.

Owner satisfaction and reliability ratings are also included in a model&#;s Overall Score. These ratings are based on Consumer Reports&#; Summer Survey of 8,377 air purifiers purchased between and . The very best models in our tests effectively sanitize the air of dust, smoke, and pollen, and receive high marks for predicted reliability and owner satisfaction. 

CR recommends more than three dozen models in our air purifier ratings, and most use a HEPA filter; a vast majority also have carbon filters to help assist in the removal of odors. These models meet Consumer Reports&#; criteria for safety, performance, value, and reliability. For more information, read our article on the best and worst air purifiers of the year.

Cost of replacement filters: As a general rule, you should replace filters (or clean those that can be vacuumed) every six to 12 months if they are pleated and every three months for activated carbon filters. Most of the units we test have an indicator light that lets you know when to change (or clean) the filter. The costs of filters vary widely: In our tests of large air purifiers, they range from $20 to more than $200. Filters with odor-removing carbon can cost as much as $50. 

Clear Air Delivery Rate (CADR): This value is provided by air purifiers tested by the Association of Home Appliance Manufacturers. Many air purifiers have undergone AHAM&#;s voluntary certification program, which provides room size guidelines along with the CADR on its AHAM Verifide seal. The CADR reflects, in cubic feet per minute, the volume of clean air that an air purifier produces on its highest speed setting. For example, a purifier with a CADR of 250 for dust particles reduces particle levels of dust to the same concentration that would be achieved by adding 250 cubic feet of clean air each minute. The higher the CADR, the faster and more efficient the air purifier is. Room air purifiers with HEPA filters often achieve the highest CADR. There are different CADR ratings for removing tobacco smoke, dust, and pollen. Focus on the CADR for your main pollutant of concern. For instance, if you live with a smoker, choose an air purifier that has a high CADR for tobacco smoke. 

Energy Star certification: Air purifiers must run around the clock to be effective, so you should factor in the energy cost when you shop. Energy Star certified purifiers are 40 percent more energy-efficient than standard models. 

Room size: If an air purifier has an AHAM Verifide seal, you can trust that the unit can handle the suggested room size listed on the seal. Be wary about manufacturers&#; claims, though. We have tested many air purifiers that are not suitable for their claimed room sizes. You can check our ratings to see what room-size range we suggest for each model based on our test results. Also, consider sizing up: Most models suitable for large rooms (350 square feet and larger) can also work well for smaller rooms at lower speeds. Lower speeds tend to be quieter&#;which is nice for when you&#;re watching TV or sleeping.

Noise: Judge an air purifier not just by how well it performs but also by how well you&#;ll be able to live with it. Because these machines should always be running, ideally they should also be quiet. (For reference, a noise rating around 50 decibels is roughly equal to the hum of a refrigerator.) You may be able to find a model&#;s decibel levels on its packaging or website listing before you buy it. Or check our air purifier ratings; we rate models on noise levels at both high- and low-speed settings.

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Clean or replace filters regularly. An air purifier can&#;t run efficiently if it has a dirty filter. Typically, you should replace filters (or clean those that can be vacuumed) every six to 12 months for pleated filters and every three months for activated carbon filters.

Place it wisely. If you have just one unit, put it in the room where you spend the most time. For most people, that&#;s the bedroom. (Some units can be heavy and clunky to move around, so if you want an air purifier in multiple rooms, you may want to buy a unit for each room.) Make sure to place the air purifier in a spot where nothing can obstruct airflow&#;away from curtains, for instance.

Adjust the speed. To avoid noise disruptions, we suggest running the unit on its high-speed setting when you&#;re not in the room and turning it down to low when you&#;re nearby. Or buy an air purifier certified for a larger area so that you can run it on a low speed and still have it work effectively. 

Air purifiers are becoming increasingly popular as more and more people understand the importance of clean air in their homes. With so many models, brands, and types available on the market, knowing which is right for you can be challenging. Selecting the right unit for your needs can take some time and effort. Fortunately, there are a few key factors that you can consider when selecting an air purifier for your home. With these factors in mind, you can choose an air purifier that meets all of your needs and provides optimal filtration performance.

1. Consider the Size of the Room

Air purifiers come in different sizes, with varying levels of power and coverage area. You&#;ll want to pick one that can handle the size of your living space. A unit must be big enough for the space to operate efficiently. Conversely, if the chosen model is too small for your needs, it may struggle with larger rooms or spaces where more pollutants need filtering out.

Considering the size of a room is especially important for larger homes or open-concept spaces, as the cleaner needs to cover the entire space adequately. You also need to consider any potential obstructions, such as furniture. Also crucial to take into account is whether you intend to use the air purifier in multiple rooms, in which case you&#;ll need to factor in the coverage between spaces. Lastly, look into any special features the air purifier may have, such as adjustable speeds or a timer.

2. Choose an Air Purifier With Multiple Filters

Multiple filter systems provide enhanced protection against airborne particles like dust, pollen, pet dander, mold spores, smoke particles, and more. When selecting an air purifier, consider pre-filter and HEPA filter products. The pre-filter traps larger particles like pet hair, while the HEPA filter captures smaller particles.

For homes with smoke concerns, look for an air purifier with a carbon filter to capture odors and gases. By having multiple layers of filtration working together in harmony, these systems can capture even smaller particles than single-stage units can.

3. Consider the Noise Level

Some units can be loud or disruptive if you&#;re trying to sleep or concentrate. If noise is a concern for you, choose a unit with a low noise level. Not only can a loud air purifier be disruptive and annoying, but it can also reduce your overall sleep quality. Additionally, some air purifiers have sound-reducing features such as silencers or fans that can further reduce operating noise.

4. Consider the Flow Rate

The flow rate of air refers to the number of particles and gases that flow through a given area over time. This can help to determine how much air will move in or out of your HVAC system. It&#;s essential to keep track of and maintain the airflow rate in your HVAC system to ensure that it&#;s efficient and has enough air passing through it.

An easy way to do this is to measure the pressure drop across a filter or other device connected to the HVAC system, as this can indicate the flow rate. If there&#;s too much of a pressure drop, your HVAC system may be unable to keep up with the demand and will have to work harder.

5. Look for an Energy-Efficient Model

If you&#;re looking to save money on your energy bill, you&#;ll want to choose an energy-efficient air purifier. Many newer models use less energy than older models, so this is something to remember when making a decision. Additionally, check out the MERV ratings of your air purifier to see how it compares against other models.

The higher the rating, the more efficient it&#;s likely to be. Finally, regularly clean or replace your filters for an energy-efficient HVAC system that lasts long and runs smoothly.

7. Check the Energy Star Logo

Energy Star is a widely recognized symbol that signifies products that meet specific energy efficiency criteria set by the U.S. Environmental Protection Agency (EPA). By choosing an HVAC system with the Energy Star logo, customers can save up to 10% on their energy bills while reducing their carbon footprint.

8. Consider the Warranty

When it comes to HVAC system maintenance, it&#;s essential to consider the warranty and return policy. This is especially true for the two main components of an HVAC system: particles and gases. Particle filtration is crucial for improving indoor air quality and reducing health risks. However, filters can clog up quickly, leading to decreased system performance and severe damage if left unchecked. Warranty coverage can provide a safety net if your system fails due to clogged filters or other issues.

As for gases, proper installation and maintenance are crucial for safety, and a warranty can help with unexpected system failures or leaks. Understanding the manufacturer&#;s warranty and return policy can help you to make informed decisions and ensure optimal system performance and safety. It&#;s essential to read the terms and conditions carefully, consult with HVAC professionals, and keep up with routine system maintenance to maximize the benefits of your warranty coverage.

9. Look at the Price

Air purifiers can range in price from around $50 to over $1,000. You need to consider how much the unit costs upfront and how much it will cost in terms of energy and replacement filters over its lifetime. Knowing what kind of air purification technology your home needs can help to narrow down your choices and save you money in the long run.

In summary, when choosing an air purifier for your home, it&#;s essential to consider the size of the room you&#;re trying to clean. If you&#;re dealing with particles like dust or pet dander, a HEPA filter air purifier is the best choice. On the other hand, if you need to remove gases and odors, an activated carbon filter will be more effective. Ultimately, it&#;s essential to research the product specifications of different air purifiers to ensure they meet your needs.

Contact F.F. Hitchcock Plumbing, Heating & Cooling for assistance with deciding on the right air purifier for your home in Cheshire, CT. You can also consider some of our other services, such as getting a humidi&#;er or an air &#;ltration system installed to help keep your home&#;s air clean and healthy. We can help with a home energy audit. Our team also handles furnace repair, AC repair, heating installation, cooling replacement, and maintenance services in addition to plumbing services and fuel services.

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