1. What is CADR?

CADR (Clean Air Delivery Rate) measures how effectively an air purifier can remove pollutants from the air in a specific room size. It indicates the volume of clean air an air purifier produces per minute.

2. How Does the Calculator Work?

The calculator uses the CADR formula:

Where:

• \( CADR \) — Clean Air Delivery Rate (cubic feet per minute)
• \( A \) — Room area (square feet)

Explanation: The formula calculates the minimum CADR required for effective air purification in a given room size, with the multiplier 2 ensuring adequate air exchange rate.

3. Importance of CADR Calculation

Details: Proper CADR calculation ensures your air purifier is appropriately sized for your room, providing optimal air cleaning performance and energy efficiency.

4. Using the Calculator

Tips: Enter room area in square feet. The value must be valid (area > 0). The calculator will determine the minimum CADR required for effective air purification.

5. Frequently Asked Questions (FAQ)

Q1: What is a good CADR rating?
A: A good CADR rating depends on room size. Generally, higher CADR values indicate better performance for larger rooms.

Q2: How often should I run my air purifier?
A: For optimal results, run your air purifier continuously or at least when the room is occupied.

Q3: Does room height affect CADR requirements?
A: Yes, rooms with higher ceilings may require air purifiers with higher CADR ratings for effective air cleaning.

Q4: Can I use an air purifier that exceeds the calculated CADR?
A: Yes, using an air purifier with higher CADR than required can provide better air cleaning, but may consume more energy.

Q5: How does CADR relate to room size?
A: CADR should be matched to room size - too small and it won't clean effectively, too large and it may be unnecessarily expensive to operate.