Ergonomic keyboard, wireless keyboard+mouse, 21.6” Monitor, airfilter

All items work and are in good conditions! Downsizing my already small space.

Microsoft Natural Ergonomic Keyboard 4000 v1.0
https://www.microsoft.com/accessories/en-us/products/keyboards/natural-ergonomic-keyboard-4000/b2m-00012
$20 OBO

Logitech MK270 wireless keyboard and mouse combo, batteries included
https://www.logitech.com/en-us/product/wireless-combo-mk270
$10 OBO

Samsung SyncMaster 216BW 21.6” LCD Monitor, 1680 x 1050 at 60 Hz
https://www.cnet.com/products/samsung-syncmaster-216bw/specs/
$70 OBO

Black and Decker HEPA air cleaner
https://www.walmart.com/ip/Black-Decker-Table-Top-HEPA-Fresh-Air-Cleaner/26994275
$15 OBO