NP21LP Air Filter NEC Air Filter Replacement

The NP21LP Air Filter NEC Projector Air Filter is a must-have to keep your projector's optical elements dust-free. This critical component helps prevent dust accumulation, ensuring optimal performance. A clogged air filter can cause higher operating temperatures due to reduced airflow, which could shorten your projector's lamp life. When you're changing your NEC Projector Lamp, it's also wise to replace the filter. Manufacturers recommend replacing the air filter with each lamp change to maintain peak performance. Regularly swapping out your air filter is a simple way to extend the life of both your lamp and projector.

NP21LP Air Filter NEC Air Filter Replacement.

Genuine Replacement Air Filter
180-Day Warranty
Free Ground Shipping on ALL Orders
Orders placed now will ship Wednesday, 4/1/2026

Sale Price: $84.20

(5)

In Stock

This product can also be used with:

Brand	Model #
Air Filters	24J38371 24J38381 24J39531 24J39541

3 Customer Review(s)

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Please rate your purchasing experience with Projectorlamps.com and the overall quality of this lamp star

Wow, what a difference a new filter makes! The image is so much brighter and clearer now; the colors really pop compared to that old, dim bulb. Thanks to Projectorfilters.com, the kids can actually see the presentations again!

Reviewed by Reviewed by Anonymous

12/21/2025 10:17:07 PM

Please rate your purchasing experience with Projectorlamps.com and the overall quality of this lamp star

The NP21LP Air Filter from Projectorfilters. com has noticeably improved airflow in my projector, keeping dust buildup to a minimum. It makes maintenance much easier and gives me peace of mind knowing my projector is better protected and should last longer.

Reviewed by Reviewed by Anonymous

5/8/2025 8:50:26 AM

Please rate your purchasing experience with Projectorlamps.com and the overall quality of this lamp star

Strongly practical air Filter

Reviewed by Reviewed by Anonymous

4/27/2025 9:04:00 PM