Does price affect the performance of an air purifier?

A few days ago, I saw a topic on the Internet: "Amazon is offering a $400 air purifier for just $68." Are good products necessarily expensive? Can cheap products be good? There is actually a standard answer to these questions in the air purifier industry.

At Berk, we believe that good health decisions matter most. Sometimes, cheaper air purifiers can work better than expensive ones. This is true if they focus on the right features. Let’s break down several core indicators of purifier offers: CADR, noise levels, and HEPA standards.

1. CADR: The Gold Standard for Air Cleaning Efficiency

CADR (Clean Air Delivery Rate) measures how quickly an air purifier removes pollutants like dust, pollen, and smoke. We call these things airborne particles. A higher CADR means faster, more efficient cleaning. Surprisingly, many expensive models have a CADR similar to cheaper alternatives.

Click here to learn how the CADR of an air purifier is calculated.

• Example: A Berk D9L-PRO model air purifier with a CADR of 1029 can clean a 1400sq.ft. Room eight times per hour—many home air purifiers on the market cannot reach this level.

• Key Takeaway: Always look at the CADR rating on the packaging. Don't assume a higher price means better performance.

2. Noise Levels: Why Expensive Doesn’t Mean Quieter

Noise can affect our sleep, and I believe everyone has seen the sleep mode on the smart features of the air purifier. But the sleep mode does not guarantee that the volume will be low, so what we should pay attention to is the noise.

A common misconception is that expensive air purifiers are quieter. In reality, noise depends on fan design and airflow optimization, not price.

In addition, the noise level is also related to the operation level of the air purifier. When you turn it to the maximum level, the sound will reach the maximum. Berk's air purifier is a hepa air purifier with an air quality monitor. It can monitor the air quality in real time and adjust the wind speed according to the environment.

• Decibel (dB) Comparison:

• Berk air purifier: Most air purifiers have noise levels between 25 dB (sleep mode) and 45 dB (high speed). A small number of air purifiers have high speed levels of 55 dB.—quieter than a library whisper.

• Luxury Brand X: 28 dB to 50 dB, despite costing $350+.

• Pro Tip: Look for models with a “sleep mode” for nighttime use, and prioritize brands that disclose noise levels transparently.

3. HEPA Filters: Not All “HEPA” Is Created Equal

HEPA (High-Efficiency Particulate Air) filters are essential for trapping 99.97% of particles as small as 0.3 microns. A mixed filter contains an activated carbon filter, antibacterial cloth, and other purification devices. However, some expensive brands use misleading terms like “HEPA-type” or “HEPA-like,” which don’t meet strict standards.

True HEPA vs. HEPA-Type:

• True HEPA (Berk Standard): Certified to remove 99.97% of allergens, mold, and bacteria.

• HEPA-Type (Common in Cheap & Expensive Models): May filter only 85-90% of particles.

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Watch Out: Brands that hide filter details in fine print. Berk uses only certified True HEPA filters, even in budget-friendly models.Learn about True HEPA Technology

Why Expensive Air Purifiers Aren’t Always Better

High-end air purifiers often inflate prices with non-essential features:

• ❌Smart Control: Gimmicky apps that drain your wallet (and phone battery).

• ❌Designer Aesthetics: Sleek looks won’t clean your air faster.

• ❌Overpriced Replacement Filters: Some brands charge 3x more for filters with the same specs as Berk’s affordable replacements.

Berk’s Approach: Premium Performance, Not Premium Prices

At Berk, we design air purifiers to increase CADR, reduce noise, and ensure True HEPA filtration—without high prices. Our D9L-PRO model proves you don’t need to splurge for clean air:

• ✅ CADR 1000+: Competes with $800 models.

• ✅ 25-45 dB: Library-quiet operation.

• ✅ True HEPA + Carbon Filter: Targets allergens, odors, and VOCs.

FAQ: About Air Purifier

Q: How much should a good air purifier cost?
A: We believe that truly practical air purifiers generally cost between 60USD and 200USD. The most important thing is whether its function matches its price.

Q: Do air purifiers run up your electric bill?
A: Air purifiers use less electricity than you think, and Berk's air purifiers meet the highest global energy efficiency ratings. It's the best way to purify the air without adding too much money.

Q: Should you leave the air purifier on all the time?
A: Unless it is used in a special environment, it does not need to be turned on all day. If you use the product according to Berk's recommended area, it only takes 20 minutes to complete the first round of air purification.

Q: What to avoid when buying an air purifier?
A: Avoid too much flashy publicity, such as design aesthetics. Pay more attention to the parameters of the air purifier itself.

Conclusion: Choose Metrics, Not Marketing

When Amazon sells a $400 air purifier for $68, it shows that prices often reflect branding, not real value.

Focus on CADR, noise, and True HEPA certification to find a cheap air purifier that works smarter, not harder.

Ready to breathe easier? Explore Berk’s range of affordable, high-performance air purifiers here and see why thousands are ditching overpriced brands→Berk Air Purifier Products

Berk helps you make better choices by using real data instead of hype. Clean air should not be expensive.

If you have any questions about air purifiers, please contact us via email or WhatsApp.