1. An easy and optimum air filter replacement not only for professional repairmen but also for average home and office users. 

2. Made of fine foam, fits in projector perfectly, no modification needed; All you need to do is opening the air filter cover then replace the old one. 

3. After changing the air filter, your projector will get better cooling and dust-proof performance; Don't hesitate to replace the air filter when you see a message telling you to clean or replace it. 

4. The air filter will be wrapped and packed securely, so you'll get it in great condition; Technical support team will be ready to help you resolve any issues, feel free to post your questions at 'Customer questions & answers' section or simply send us a message.