How to Choose the Best Air Cleaner for Your Home

How clean is the indoor air you breathe, and how can you make it cleaner?  Between the ongoing COVID-19 pandemic, seasonal wildfires and spring allergy season, those are questions many are asking. Several home appliances can help reduce indoor pollutants, but an air cleaner is your go-to product if you are focused on improving the quality of your home’s indoor air.

Air cleaners have many benefits. Seasonal allergy sufferers have long turned to air cleaners to reduce allergens. Air cleaners can make your living space cleaner and more comfortable, and some models (those with carbon filters) can reduce odors. People who live in areas affected by wildfire smoke rely on air cleaners to remove the resulting particulate matter and pollutants from their indoor air.

A lot of the attention given to indoor air quality recently stems from the the effort to reduce exposure to COVID-19. Air cleaners are not currently tested for their ability to remove viruses and bacteria, but the U.S. Environmental Protection Agency and National Institutes of Health have recommended air cleaners as a way to reduce exposure. In addition, AHAM recently finalized a performance test standard for air cleaners that tests the effectiveness of portable room air cleaners’ ability to remove  viruses, bacteria and mold.

How air cleaners work

How do air cleaners remove pollutants from your home’s air? It depends on the model. Some air cleaners use a combination of filters (HEPA and ULPA) and fans, electrostatic filters that clear the air by using static to attract particles, electrostatic precipitators that attract particles to a plate or grid, or ionization combined with other technologies. Many units also have pre-filters that trap larger particles.

On a given model, you might also find multiple features, including:

  • Multiple power settings
  • Oscillation, including some with multiple levels of oscillation
  • Sensors: Some air cleaners have the ability to sense the air quality and adjust the fan speed accordingly
  • WiFi capability

Some manufacturers are also incorporating robotics into air cleaners. Early models use sensors to monitor the air quality in different rooms so the robot can go where the air needs it most.

Finding the right air cleaner

With all of the models and features available, how do you choose the right air cleaner for your home? The most important detail is the size of the room in which the air cleaner will primarily be used. Look for the AHAM Verifide® label, which will show the air cleaner’s Clean Air Delivery Rate (CADR) and suggested room size.

CADR is a measurement of how fast an air cleaner filters three commonly sized particulates: dust, pollen and tobacco. The higher the number on the label, the faster the air cleaner filters the air. However, don’t just choose the air cleaner with the highest numbers. You might end up with one that is too large for the room, leading to unnecessary energy use and noise. A too-small model may not get the job done. Follow the 2/3 rule, and choose an air cleaner with a tobacco smoke rating that is two-thirds the size of the room’s area. That means a room that is 200 square feet, would require an air cleaner with a CADR for tobacco smoke of at least 132.

CADR also gives you a way to choose an air cleaner based on your air cleaning needs. If you live in an area with a high pollen count, consider air cleaners with higher ratings for filtering pollen. If dust is an issue, pay closer attention to the unit’s rating for dust.

You will find the AHAM Verifide® label with the CADR ratings on the product packaging. However, you do not have to spend hours browsing units on shelves. You can compare AHAM-certified air cleaners through AHAM’s searchable directory. Search models by certified CADR ratings, suggested room size, manufacturer and brand name.

CADR is a recognized performance testing program in which air cleaners are randomly selected and tested at an independent laboratory using the American National Standard, known as ANSI/AHAM-AC-1.

After purchasing

Now that you have an air cleaner that is right for your home, it is time to maximize its air cleaning potential. 

Position it properly:  Air cleaners work best when they’re positioned to allow them to filter as much air as possible. Certain air cleaners, depending on the design, aren’t as effective if placed in the corner of a room. Place the air cleaner closer to the center of the room, away from anything that may block or obstruct the air flow.

Clean it regularly: This applies to both units with filters and those that use electrostatic precipitators. Change the filter according the recommendations in the appliance’s use and care manual. If you use the air cleaner frequently or in areas with higher levels of pollutants (like where the pets hang out), you may need to change it more often. Precipitators also need to be cleaned regularly. A drop in performance may signal it’s time to change the filter or clean the precipitator.

Use your other appliances: Vacuums with HEPA filters, central vacuums, clothes washers and dryers, air conditioners and dehumidifiers all can help keep the allergens in check in your home.

Blender Boost: 4 Healthy Recipes for Fall

It feels good to be back in the fall routine, with school days and a full schedule of pickups, drop-offs, activities and events. It is a welcome return to the familiar, but going out more also opens us up to some of the things we would rather do without, like the first colds of the school year. We could all use some healthy recipes to keep us feeling good during this busy time. And if we can use our blender to make them, all the better!

Time to cook can also be in short supply during the busy back-to-school season, and your blender can help you get a healthy dish or snack on the table quickly, sometimes without even having to cook. More than 90% of households in the U.S. have a blender, and healthier eating is one of the most popular reasons for using one.

“Staying healthy is multifaceted process that includes managing stress, proper sleep, regular exercise and staying hydrated, in addition to maintaining a healthy diet,” says Dana Angelo White, a sports dietitian and associate clinical professor of athletic training and sports medicine at Quinnipiac University and owner of Dana White Nutrition. “When it comes to food, antioxidant-rich sources help to fight inflammation, and foods high in zinc and vitamins C and D are some of the most coveted immunity-centric nutrients.”

We asked White and Libby Mills, a registered dietitian, spokesperson for the Academy of Nutrition and Dietetics and host of the Libby’s Luncheonette podcast for some of their favorite nutrient-rich blender recipes that can boost your nutrition as the school year picks up.

Pumpkin Orange Ginger Smoothie

“Eating a variety of nutrient-rich foods is one of the best things you can do to support your immune system,” Mills says. “A good place to start is by setting a goal to eat seven servings of vegetables and fruits a day.”

This smoothie offers a jolt of nutrients like beta carotene, vitamin C, protein and vitamin D if you use fortified orange juice or milk, Mills says. “Substituting a plant-based milk for cow’s milk, may or may not have vitamin D. You would have to read the label to know for sure. The pumpkin seeds, along with the milk provided protein, and are also a pretty tasty way to get zinc.”

¼ cup fortified 100% orange juice
½ cup low-fat milk
¼ cup pumpkin puree, or cooked pumpkin
¼ teaspoon grated ginger, peeled
1 small carrot, cut into several pieces
2-3 cubes of ice

2 tablespoons, pumpkin seeds (Save a few to sprinkle on top)

Add juice, milk, pumpkin, ginger, carrot, ice and most of the pumpkin seeds into your blender. Blend until smooth. Pour into a tall glass and top with pumpkin seeds.

“Yogurt (along with a little water) could be substituted for the low-fat milk, which would give you probiotics from its fermentation — also helpful to the immune system,” Mills says.

Roasted Turnip and Turmeric Soup

You will need your range before you use your blender for this one, which White created when her daughter was sick with a cold. “Add this soul warming recipe to your cold and flu season arsenal ASAP,” she writes.

1 medium butternut squash peeled, seeded and diced
3 large turnips peeled and diced
2 medium sweet potato peeled and diced
2 tablespoons olive oil
1 bunch fresh oregano
1 small bunch fresh thyme
1 quart chicken stock homemade or low sodium
3 tablespoons heavy cream
2 teaspoons ground turmeric
Kosher salt
Black pepper

Preheat oven to 400-degrees F. Place vegetables on a sheet pan, drizzle with olive oil and season with 1 teaspoon kosher salt and black pepper to taste; toss in the fresh herbs and roast for 35 minutes or until vegetables are fork tender. Discard the herbs and place roasted vegetables in a large soup pot. Add stock, cream and turmeric and season with an additional ½ teaspoon salt; stir and bring to a boil. Puree using an immersion blender – taste for seasoning and serve.

Cranberry Rejuvenator with Orange

This recipe, from White’s book “Healthy, Quick & Easy Smoothies, has five ingredients and checks in at under 300 calories. White calls it “a seasonal delight bursting with vitamin C and 10 grams of protein per serving.”

1 cup orange juice preferably, freshly squeezed
1 cup frozen whole cranberries
3/4 cup nonfat vanilla Greek yogurt

In a blender, combine orange juice, cranberries and yogurt. Blend on high speed until smooth. Pour and serve immediately.

Pineapple Mango Chia Shake

1 cup unsweetened almond milk
1 cup frozen mango chunks
1 cup frozen pineapple chunks
1 medium clementine
2 tsp chia seeds

In a blender, combine almond milk, mango, pineapple, clementine and chia seeds. Blend until smooth. Pour into glasses and serve.

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