Cedar Elements Cedar Blocks
The Cedar Elements Cedar Blocks are the backbone of my closet protection. Real eastern red cedar with a high oil content that produces the characteristic cedar smell, which both repels adult moths and inhibits larval activity. Blocks lose effectiveness as cedar oil evaporates over months; sanding lightly with fine sandpaper twice a year restores the smell and the activity. Best overall combination of safety, effectiveness, and longevity. A multi-pack covers a walk-in closet easily.
I dealt with a real moth infestation in my walk-in closet and tested five different moth repellents over a year to find which actually protect wool and cashmere.
I had a clothes moth infestation in my walk-in closet a couple of years ago that taught me everything I now know about prevention. By the time I noticed the small holes in two cashmere sweaters and a wool coat, the damage was done. Since then I have run five different moth repellents in my closet and dresser drawers over the course of a year, tracking pheromone trap catches and inspecting garments monthly. Pesticide-free repellents, cedar quality, and pheromone monitoring are the lessons I would teach my former self. Here are the five that earned their place.
| Moth Repellent | Type | Active | Coverage | Best For |
|—|—|—|—|—|
| Cedar Elements Cedar Blocks | Cedar | Cedar oil | Per block | Best overall |
| Dr. Killigan’s Pantry Trap | Pheromone trap | Pheromones | 25 sq ft | Monitoring |
| Reefer-Galler Sachets | Sachet | Cedar + lavender | Per sachet | Drawers |
| Richards Homewares Moth Away | Sachet | Botanical | Per sachet | Pesticide-free |
| Acana Hangers | Cedar hangers | Cedar oil | Per hanger | Active wardrobes |
How we evaluated these
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
The shortlist
| Pick | Best for | Score | |
|---|---|---|---|
| Cedar Elements Cedar Blocks | Cedar | Check price | |
| Dr. Killigan's Pantry Trap | Pheromone trap | Check price | |
| Reefer-Galler Sachets | Sachet | Check price | |
| Richards Homewares Moth Away | Sachet | Check price | |
| Acana Hangers | Cedar hangers | Check price |
Each pick, examined
Cedar Elements Cedar Blocks
The Cedar Elements Cedar Blocks are the backbone of my closet protection. Real eastern red cedar with a high oil content that produces the characteristic cedar smell, which both repels adult moths and inhibits larval activity. Blocks lose effectiveness as cedar oil evaporates over months; sanding lightly with fine sandpaper twice a year restores the smell and the activity. Best overall combination of safety, effectiveness, and longevity. A multi-pack covers a walk-in closet easily.
Dr. Killigan's Pantry Trap
The Dr. Killigan's Pantry Pest Trap is the pheromone monitoring system I now use in every storage area. Sticky pad with pheromone lure attracts and traps adult male moths. Not a repellent strictly, but the most reliable way to detect a moth presence before damage starts. Replacement pads last about 90 days. Best for confirming whether repellents are working and for catching infestations in early stages. The product works for pantry moth species; check for the clothes moth variant if you need closet-specific.
Reefer-Galler Sachets
The Reefer-Galler Sachets are the drawer pick. Cedar and lavender blend in a breathable cotton sachet that fits in drawers and folded clothes piles. The cedar handles the moth deterrence and the lavender adds a pleasant smell that disguises any musty closet odors. Replace every six months or refresh by lightly squeezing the sachet to redistribute the oils. Best for dresser drawers and luggage storage.
Richards Homewares Moth Away
The Richards Homewares Moth Away is the pesticide-free option for homes with kids, pets, or people sensitive to cedar oils. Botanical blend in a hanging sachet, no harsh chemicals, and a milder smell than cedar that some users prefer. Less aggressive than cedar in actual repellence, so works best as a layer alongside cedar blocks rather than a sole defender. Best for homes that want a clean smell over the strong cedar profile.
Acana Hangers
The Acana Hangers are the active-wardrobe pick. Cedar-construction hangers that combine the function of a hanger with continuous moth deterrence. Best for jackets and suits that hang for long periods. The hangers contact the garment directly, which delivers the cedar protection without depending on closed space concentration. Sand or refresh once a year to maintain the cedar oil potency.
Questions answered
Clothes moths are drawn to natural fibers, especially wool, cashmere, silk, and feathers, particularly when they carry body oils, sweat, or food residues. Clean storage is the single biggest deterrent. Light avoidance also matters; clothes moths prefer dark undisturbed spaces.
Mothballs use naphthalene or paradichlorobenzene, both EPA-regulated pesticides that emit fumes considered harmful in enclosed living spaces. Modern repellents using cedar, essential oils, or pheromone traps are safer for homes with pets, kids, or people with sensitivities.
Look for small holes in wool garments, silken tubes in folded clothes, larvae about a half-centimeter long, and small adult moths flying around when you turn on lights at night. Damage is irreversible; prevention beats treatment every time.
