Buy ‘filter’ with Bitcoin Crypto-Currency – Spendabit

Slip-On Polarizing Filter for BlackVue DR430/450/470/490/590 Front Camera

$29.99 at The Dashcam Store

Smoke Buddy Junior Personal Air Filter

Lightforce FAB 240mm Polycarbonate Amber Filter

$25.00 at Ozautoelectrics

Kenko 37mm Circular Polarizer Filter PL

$13.50 at Scan Computers

GoldTone Replacement Vacuum Filter Fits Eureka DCF-10 and DCF-14 430 Series Upright Cleaner Replaces 62731, 62397 (2 Pack)

$12.89 at Overstock.com

1/4" Male -1/4" Tube Quick Connect Purifier Tube RO Water Filter 5pcs - White,Blue - 0.67" x 1.18" (D*L)

$8.99 at Overstock.com

Air Purifier Replacement Filter True HEPA Filter - 8" x 8" x 1.5" (L x W x H)

$30.99 at Overstock.com

Goldtone (6 Pack) Activated Charcoal Water Filters + Holder Combo - Replaces KEURIG 2.0 and BREVILLE BWF100 Filters and Holders

$9.49 at Overstock.com

Outland AC-302 Economy Plus Window Air Conditioner Filter, 24" x 15" x 1/4"

$11.26 at Overstock.com

Akasa Fan Filter in Aluminium for 140mm (14cm) Fans

$5.26 at Scan Computers

GOLDTONE Activated Carbon Water Filters fits KITCHENAID Coffee Makers and Brewer

$15.59 at Overstock.com

CHERRY UM Pop Filter Black

$21.12 at Scan Computers

Goldtone (6 Pack) Ion Exchange Resin Water Filters + Holder Combo - Replaces KEURIG 2.0 and BREVILLE BWF100 Filters and Holders

$11.00 at Overstock.com

GoldTone Reusable 4 Cup Basket Style Filter for Mr. Coffee - Replacement Permanent Filter for Mr Coffee - Mesh Bottom (1 Pack)

$7.00 at Overstock.com

Blendin Single Reusable K-cup Coffee Filter for Keurigs K45,K50,K55,K60,K65,B70,B71,B76,B77,B79,K70,K75,K77,K79, 4 Pack

$9.99 at Overstock.com

SilverStone SST-FF143B 140mm Ultra-Fine Nylon Dust Filter 3-Pack

$18.52 at Scan Computers

Premium Replacement Charcoal Water Filters for All Keurig Makers & Machines, Replaces Activated Carbon Filter, 1.0 2.0 - 12 Pack

$8.99 at Overstock.com

GoldTone Activated Charcoal Water Filters Replaces All KEURIG & BREVILLE Coffee Machines, Replacement 1.0 2.0 BWF100 (6 Pack)

$7.00 at Overstock.com

Bambu Lab Activated Carbon Air Filter

$5.72 at Voxel Factory

JOBY Wavo POD Pop Filter

$8.60 at Scan Computers

GoldTone 8-12 Cup Reusable #4 Cone Coffee Filter for CUISINART & (12 Pack) Replacement Charcoal Water Filters

$16.49 at Overstock.com

Lian Li Lancool 207 Front Dust Filter

$5.26 at Scan Computers

Lian Li Lancool 207 Front Dust Filter

$5.26 at Scan Computers

GoldTone Activated Charcoal Water Filters Fits All KEURIG Coffee Machines, Mini, Classic 1.0, 2.0 Replacement Filter (12 Pack)

$9.49 at Overstock.com

GoldTone Reusable Kcup Coffee Filter Fits Keurig 1.0 K Cup - Permanent Reusable Single Serve Replacement Filter (2 Pack)

$9.99 at Overstock.com

GoldTone Reusable 8-12 Cup Basket Style Filter Replacement Fits CUISINART Coffee Machines and Brewers, BPA Free (1 Pack)

$8.19 at Overstock.com

Bambu Activated Carbon Air Filter

$15.66 at RepRap 3D Printer Shop

Black 80mm Aluminium fan filter from Akasa GRM80-AL01-BK

$3.96 at Scan Computers

GoldTone Reusable 8-12 Cup Basket Filter Replacement Fits ALL Black and Decker Coffee Machines and Brewers, BPA Free (1 Pack)

$7.00 at Overstock.com

Marlboro Filter Black

$4.59 at CigaretKretek

Flamez Filter Tips-Booklet

$0.46 at Bongify

Volcano Hybrid - Air Filter

Silicone Bong Filter

$0.96 at Bongify

Frutta Cigarette Filter Tubes (Apple/Mint Flavour)

$7.23 at Bongify