Common Mistakes to Avoid When Using an Air Purifier
Air purifiers are powerful tools for improving indoor air quality—but only when used correctly. Many users unknowingly make simple mistakes that reduce the effectiveness of their devices.
8/15/20252 min read


In this post, we’ll highlight five of the most common mistakes and show you how to avoid them so you can get the clean, fresh air you deserve.
1. Placing the Purifier in the Wrong Spot
Mistake: Putting the air purifier in a corner, behind furniture, or too close to walls.
Why It’s a Problem: It blocks airflow and limits the purifier’s ability to circulate and clean air properly.
Tip: Place your air purifier in an open area, at least 30–50 cm away from walls or obstacles. Position it near the center of the room or close to the source of pollution (like a litter box or kitchen).
2. Using the Wrong Size for the Room
Mistake: Using a purifier that’s too small for the space.
Why It’s a Problem: It can’t process enough air to clean the entire room effectively, especially in large or open-plan areas.
Tip: Always check the recommended room size on the product specs. If you’re unsure, choose one rated for a slightly larger space.
3. Not Replacing Filters on Time
Mistake: Running the purifier for months without changing the filters.
Why It’s a Problem: Dirty filters become clogged and ineffective, circulating polluted air instead of cleaning it.
Tip: Set a reminder based on the manufacturer’s guidance—usually every 6–12 months for HEPA filters. Some models have a filter replacement indicator for convenience.
4. Turning It Off Too Often
Mistake: Only running the purifier for a few hours per day.
Why It’s a Problem: Air pollutants return quickly. Intermittent use won’t keep the air consistently clean.
Tip: For best results, run your air purifier continuously—especially if you suffer from allergies or live in areas with poor air quality. Choose energy-efficient models to minimize power use.
5. Ignoring Other Sources of Pollution
Mistake: Thinking an air purifier alone is enough to keep your air clean.
Why It’s a Problem: Without addressing the root causes, the purifier is just a band-aid.
Tip: Regularly vacuum with a HEPA vacuum, reduce indoor smoking, clean vents, and use fragrance-free cleaning products. Air purifiers work best as part of a whole-home clean air strategy.
Bonus: Lead Power Air Purifiers Make It Easier to Get It Right
At Lead Power, we design air purifiers with real-world use in mind:
Smart filter replacement reminders
Compact yet powerful models sized for bedrooms and offices
Quiet 24/7 operation for consistent air flow
Clear instructions for placement and care
We make it easier for you to avoid these common mistakes—and breathe easier every day.
Avoiding these simple mistakes can make a big difference in the performance of your air purifier. By placing it correctly, maintaining it regularly, and choosing the right size, you’ll enjoy cleaner, healthier air in your home or office.