1. Effective: A good air freshener should effectively eliminate unpleasant odors in a room and leave a pleasant and long-lasting scent.

2. Safe: It should be safe for use around humans and pets, and not cause any adverse reactions or health issues.

3. Natural: Natural air fresheners made from essential oils or plant extracts are generally considered safer and healthier than synthetic ones.

4. Easy to use: A good air freshener should be easy to use, with clear instructions and a convenient dispensing method.

5. Affordable: It should be reasonably priced and provide good value for money.

Benefits of a good air freshener: