Project Farm puts products through brutal head-to-head tests — and only the best come out on top. This guide rounds up the top finishers from his most popular comparison tests that passed our live verification, with links to watch each test.
Adam Finds is not affiliated with or sponsored by Project Farm.
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Laundry Detergent
Project Farm tested 13 laundry detergents on the worst stains imaginable, including gear oil, blood, and grass.
Tide Ultra Oxi Boost Liquid Laundry Detergent, 92 fl oz
Winner. Tide Ultra Oxi Boost took first place overall, beating 12 rivals on tough stains. It’s currently listed around $15.24 on Amazon. (Persil finished as runner-up, and Tide Pods took 3rd — winning the gear-oil test outright.)
Watch the Project Farm test on YouTube
Air Purifiers
Project Farm tested every major air purifier, measuring particle removal, noise, and value — with one clear winner.
WINIX 5510 Air Purifier
Winner. The WINIX 5510 (new generation of the 5500-2, with app support) came out on top for large rooms up to 1,881 sq ft. It’s $179.99 on Amazon. (Coway and Dyson tied for 2nd.)
Watch the Project Farm test on YouTube
Corded Shop Vacs
Project Farm tested corded shop vacs for suction power, durability, and value — one destroyed the competition.
Shop-Vac 8252605 16 Gallon 6.5 Peak HP Wet/Dry Vac
Winner. The Shop-Vac 8252605 (16 gallon, 6.5 peak HP) dominated with heavy-duty suction for jobsite, garage, and workshop. It’s $169.65 on Amazon. (Harbor Freight Bauer took 3rd but isn’t on Amazon.)
Watch the Project Farm test on YouTube
Portable Spot Cleaners
Project Farm tested portable spot cleaners on the toughest stains — one eats all stains.
BISSELL Little Green HydroSteam Portable Carpet Cleaner, 3618
Winner. The BISSELL Little Green HydroSteam (3618) combines hot water and steam for multi-purpose upholstery and auto detailing. It’s $249.99 on Amazon.
Watch the Project Farm test on YouTube
Vacmaster SCB301 400 Series Portable Spot Cleaner
Tied 2nd. The Vacmaster 400 Series (SCB301) with 16Kpa suction tied for second. It’s currently on sale: $73.79, down from $89.99 (18% off).
Watch the Project Farm test on YouTube
Shark StainStriker Portable Carpet/Upholstery Cleaner, PX202BRN
Tied 2nd. The Shark StainStriker (PX202BRN) with 4 tools also tied for second place. It’s $149.99 on Amazon.
Watch the Project Farm test on YouTube
High-Power Flashlights
Project Farm tested high-power flashlights, including a claimed 100,000-lumen monster — measuring actual output, throw, and runtime.
Fenix TK21R Tactical Flashlight
Winner. The Fenix TK21R (3,600 lumens, USB-C rechargeable) took the top spot. It’s $134.95 on Amazon.
Watch the Project Farm test on YouTube
OLIGHT Seeker 4 Pro Rechargeable Flashlight
2nd place. The OLIGHT Seeker 4 Pro (4,600 lumens, Midnight Blue) finished second. It’s $139.99 on Amazon.
Watch the Project Farm test on YouTube
Diagonal Cutters
Project Farm tested diagonal cutters for cutting performance, durability, and ergonomics — saying he’d never seen pliers this good.
SK 8-Inch Side Cutters
Winner. The SK 8-inch side cutters (diagonal cutting pliers) with laser-hardened edges won the shootout. They’re $22.99 on Amazon.
Watch the Project Farm test on YouTube
Channellock 338 8″ High Leverage Diagonal Cutting Plier
2nd place. The Channellock 338 (8-inch high-leverage, XLT) finished second. It’s $25.95 on Amazon.
Watch the Project Farm test on YouTube
Ceramic Coatings
Project Farm tested ceramic coatings for hydrophobics, durability, and gloss — calling one the best he’d ever seen, not even close.
GYEON Pure Single Layer Pro Grade Paint Ceramic Coating, 50ml
Winner. GYEON Pure (50ml single-layer pro-grade) dominated the test. It’s $89.99 on Amazon.
Watch the Project Farm test on YouTube
Gtechniq Crystal Serum Light Ceramic Coating, 1.7 fl oz
Close 2nd. Gtechniq Crystal Serum Light (1.7 fl oz, up to 5 years protection) was a close runner-up. It’s $109.95 on Amazon.
Watch the Project Farm test on YouTube
Griot’s Garage Ceramic 3-in-1 Wax, 22 oz
Best spray-and-wipe pick. Griot’s Ceramic 3-in-1 Wax (22 oz SiO2 spray) was his pick for easy spray-and-wipe application. It’s currently on sale: $17.59, down from $21.99 (20% off).
Watch the Project Farm test on YouTube
Engine Air Filters
Project Farm tested engine air filters for filtration efficiency and airflow — warning that a bad filter will destroy your engine. Note: air filters are vehicle-specific — check the fitment for your vehicle.
MOTOALL 15908916 Engine Air Filter
2nd place. The MOTOALL 15908916 (fits Chevrolet Silverado 1500, Tahoe, GMC Sierra and others) finished second. It’s $14.95 on Amazon. Check the fitment for your vehicle.
Watch the Project Farm test on YouTube
BOSCH 5499WS Workshop Engine Air Filter
Best value pick. The Bosch 5499WS (98% efficiency at capturing dirt) was the best value at around $10. It’s currently $9.99 on Amazon (9% off the typical $10.99). Check the fitment for your vehicle.
Watch the Project Farm test on YouTube
Heads up: prices, ratings, and availability can change — check the live Amazon page for current details.
Looking for more winners? Check out our Tested #1 by Project Farm page for products that won his shootouts outright.
Adam Finds 