Why CADR Matters When Choosing an Air Purifier

Why CADR Matters When Choosing an Air Purifier

The Clean Air Delivery Rate (CADR) is one of the most important metrics for evaluating an air purifier’s performance. It measures how quickly the device can remove pollutants such as dust, pollen, and smoke from the air. Understanding CADR helps consumers select a purifier that is powerful enough for their room size and air quality needs.

What Is CADR?

CADR is expressed in cubic feet per minute (CFM) and indicates the volume of clean air produced every minute. Higher CADR numbers mean faster purification and better performance in larger rooms.

Three Types of CADR Ratings

  1. Dust CADR – Measures removal of fine household dust

  2. Pollen CADR – Reflects performance against larger allergens

  3. Smoke CADR – Measures filtration of very small particles (most difficult to remove)

Why CADR Is Important

  • Ensures the purifier can clean the air efficiently

  • Helps determine if the unit fits the room size

  • Indicates real-world performance based on standardized tests

  • Critical for households with pets, allergies, or frequent cooking

How to Use CADR When Shopping

As a general guideline, choose a purifier with a CADR rating equal to at least two-thirds of the room’s square footage. Higher ratings are beneficial for open spaces or homes with poor ventilation.

Conclusion

CADR is a key factor in choosing a high-performance air purifier. By understanding this rating, you can make a more informed decision and ensure cleaner, healthier indoor air.

FAQ — For Homes With Pets

Q1: Is the Airfire air purifier suitable for homes with cats and dogs?


Yes. Airfire is specifically designed for homes with pets. It captures pet dander, fur, and microscopic allergens as small as 0.3 microns through a HEPA filtration system. It also helps reduce pet odors to keep the indoor air fresh.

Q2: Can it help with pet allergies?


Yes. If someone in the home is allergic to pet hair or dander, this purifier can significantly reduce airborne allergens. Many users notice improvements in sneezing, itchy eyes, and nasal congestion within 1–2 weeks of regular use.

Q3: Will my cat or dog be scared of the purifier?


No. Airfire runs with low noise levels, especially in Sleep Mode. It operates quietly enough for pets to rest comfortably without being disturbed.

Q4: Can it remove pet odors (like litter box or dog smell)?


Yes. The activated carbon layer in the filter absorbs odor molecules effectively. For strong odors, running the purifier for 6–12 hours a day is recommended.

Q5: How often should I replace the filter in a pet home?


For homes with one or more pets, we recommend replacing the filter every 3–5 months depending on usage. The purifier will alert you when the filter needs replacement.