How Often Should You Replace Your Air Filter During the Holidays?

As a general rule, replace 1” air filters every three months or sooner and 4”+ air filters annually or sooner to ensure optimal performance. Filtrete has you covered with high-quality filters that provide reliable airflow and help pull in and capture unwanted microparticles.

While you’re busy decking the halls, you might be overlooking something sneaky lurking in your home. No, we’re not talking about the relatives you see only once a year. Think particulate matter, volatile organic compounds, mold, mildew common allergens and more. Indoor air quality often takes a hit during the most wonderful time of the year, but we’re here to help you keep your air fresher and festive without adding yet another task to your never-ending to-do list.

What affects your home’s indoor air quality?

On top of the usual suspects of indoor air quality offenders, uninvited guests may show up to your home during the holidays. Think house guests bustling in and out, constant cooking, baking, and roasting — and an overworked HVAC system.
 

• House guests bring laughter, good vibes and, well, maybe a slight hit to your indoor air quality. More people mean more activity and a higher demand for airflow.
   
• Cooking and baking stirs up more than delicious aromas, but it also releases tiny particulates into the air. These airborne culprits love to linger in tight, poorly ventilated spaces, making your air less than appetizing. Cranking up the heat, using certain cooking oils or firing up a gas stove can amp up the production of these sneaky pollutants even more.
   
• When you’re in full gear during the holidays, so is your home’s HVAC usage. When your HVAC is running nonstop, it circulates the same dry, stale air over and over, reducing humidity levels and potentially spreading allergens like dust and pet dander. Not to mention, if your house air filters are overdue for a change (an easy fix, we promise!), your system might recycle particles you’d rather not inhale.

How can you improve indoor air quality during the holidays?

There are plenty of festive ways to jingle all the way to better indoor air quality this holiday season. Opt for a real Christmas tree instead of an artificial one, pop open a window for a refreshing gust of Jack Frost and give your home the gift of a high-quality HVAC air filter.

1. Deck the halls with real greenery: Instead of synthetic decorations that can release unwanted chemicals and mask odors, opt for fresh garland and live Christmas trees. And remember, before you start hanging garlands and tinsel with reckless abandon, make sure you’re not blocking air vents or returns. Restricted airflow can make your HVAC system work overtime and stir up more dust.

2. Invite fresh air to the party: Crack a window for a few minutes each day (yes, even in winter). This brief airing out can dilute stuffy indoor pollutants and infuse some crisp outdoor freshness into your home. It also gives you an excuse to layer on another one of your festive Christmas sweaters.

3. Keep the air flowing: Ventilate, ventilate, ventilate! Always use your stovetop vent hood while cooking (make sure it vents outdoors!) to help reduce airborne particulates. Don’t forget to run bathroom fans or other home ventilation systems regularly to keep indoor air fresh.

4. Simmer your way to seasonal cheer: Skip the pine-scented candle (remember, you’ve got a real tree) and go au naturel with stovetop potpourri. Simmer a pot of water with cinnamon sticks, orange peels and cloves for a festive scent that’ll impress your eco-conscious cousin.

5. Vacuum like a pro: With all the foot traffic from gatherings, don’t let dust and debris pile up. Use a vacuum with a built-in HEPA filter to trap particulates rather than redistributing them. And don’t forget to give high-traffic areas and rugs some extra love — they’ve likely seen a cookie crumb or two. If you don’t have time to act like a pro, you can leave it to one by opting for a professional carpet cleaning service.

6. Upgrade your air filters: You might spend more than you want during the holidays, but we don’t recommend buying a cheap air filter to pinch pennies. High-quality filters like the Filtrete™ MPR 1900 Premium Allergen, Bacteria & Virus Air Filter* help pull in and capture microparticles — such as pet dander, bacteria, smoke and up to 72% of virus airborne particles¹ — while letting cleaner air flow through.² Filtrete™ MPR 1900 Air Filters deliver better airflow than any other brand’s residential 1” retail MERV 13 filters, based on California Energy Commission claimed data as of 1/29/2025. Bonus points if you set a reminder to check and replace them regularly — it’s the gift that keeps on giving.

How often should you replace your house air filter?

We recommend replacing 1” filters every three months or sooner, and 4”+ filters at least every 12 months or sooner. Filtrete™ Air Filters provide optimal airflow throughout a filter’s life span. But, if you’re cooking or baking often — or using your HVAC system more often — remember to check your HVAC filter to see if you should change it sooner than later.

Changing your house air filter might seem like a thankless task — and not nearly as fun an age-old holiday tradition — so think of it as the perfect gift that checks all the boxes: thoughtful, experience-based and timeless.

By taking these simple steps, you can breathe easier knowing that you can focus on what really matters this holiday season — like deciding who gets the last slice of pie.

Sources

1. Based on airborne MS2 virus testing. Initial efficiency.
2. Filtrete™ MPR 1900 Air Filters have higher particle capture than Filtrete™ MPR 1500 Air Filters.