Find the Perfect Air Purifier for Your Room

Designed to match your space with the right air purification solution for healthier indoor living.

Minimum CADR Calculator

We recommend using the CADR (Clean Air Delivery Rate) rating as a guide to selecting the most appropriate Air Purifier for you.

Room Type
Select the type of the room
Ceiling Height
Select the ceiling height of the room
Room Width
Enter the width of the room in metres
Room Depth
Enter the depth of the room in metres
Room Size
The area of your room in
square metres.
0.00 m²
Minimum CADR Required
0  m³/h
The minimum Clean Air Delivery Rate for
effective air purification according to your
room size.
Choose the Air Purifier
Right for You
Based on the results above, select the air purifier that best matches your room's CADR needs.
View full collection →

FAQs

What is CADR and why does it matter when choosing an air purifier?

CADR (Clean Air Delivery Rate) indicates how quickly an air purifier can clean the air in a room. The higher the CADR, the faster it removes dust, allergens, and pollutants. Choosing the right CADR ensures the unit can effectively handle your room size and air quality needs.

How accurate is this CADR calculator?

This calculator uses room size, ceiling height, and air change rates to estimate the ideal CADR. It provides a practical recommendation benchmark, not just theoretical specs, ensuring better real-world performance.

What happens if I choose a purifier with lower CADR than recommended?

You’ll likely experience:

  • Slower air cleaning
  • Persistent dust or odors
  • Reduced effectiveness for allergies or pollutants

In short, the purifier will struggle to keep up with your space.

Does CADR alone determine the best air purifier?

No. CADR is critical, but not the only factor. You should also consider:

  • Filtration type (HEPA, carbon, UV, etc.)
  • Room usage (bedroom, living room, office)
  • Additional features (WiFi, noise level, multi-function use)

The best choice balances performance + purpose, not just numbers.

Does CADR alone determine the best air purifier?

No. CADR is critical, but not the only factor. You should also consider:

  • Filtration type (HEPA, carbon, UV, etc.)
  • Room usage (bedroom, living room, office)
  • Additional features (WiFi, noise level, multi-function use)

The best choice balances performance + purpose, not just numbers.

Can I use one air purifier for my entire home?

No ; air purifiers are designed for specific room sizes, not whole homes. For best results, you need:

  • One unit per room, or
  • A high-capacity unit for large open spaces