I think they are random, some work very well some not so well, they cannot be used in a very large room, the first one works almost 45 days, the second one less than a week. Now I'm trying a third one. Works well as a car air freshener, although some scents can be a bit strong. Overall I'm happy with the purchase for the price.
π Long-Lasting Glade Cashmere Woods Solid Air Freshener - 6oz (170 g) Pack of 6 for a Fresh and Inviting Home Environment
12 Review
Air Wick Plug in Scented Oil 10 Refills - Hawaii Fragrance, Eco-Friendly Air Freshener with Essential Oils
11 Review
MOSO NATURAL: 200g Original Air Purifying Bag (4 Pack) for Cars, Closets, Bathrooms, Pet Areas - Unscented, Chemical-Free Charcoal Odor Eliminator
11 Review
Air Wick Essential Oils Freshener Refill, Blue Agave and Bamboo Scent, Pack of 5
11 Review
π§Ή Clean Reach Value Pack: 33" Telescopic Pole & 3 Cleaning Pads β Seen on TV!
8 Review
π Upgrade Your RV's Refrigerator Door Latch with Adjust A Brush PROD402
8 Review
π½ mDesign Compact Freestanding Plastic Toilet Bowl Brush and Holder - Space Saving, Sturdy, Deep Cleaning - 4 Pack Silver
9 Review
𧽠Small Diameter Drill Brush Set for Efficient Cleaning on Carpet, Tile, Shower Track, and Grout Lines - Ideal for SEO
8 Review