If you want to keep mosquitoes away from your deck or patio, without having to slather your skin with bug repellent, get the Thermacell E-ZoneGuard Patio Max Rechargeable Mosquito Repeller.After spending 80 hours researching a category full of marketing hype and debunked methods (including popular options like citronella candles), we found that the E65 stands out by actually being effective. Its rechargeable, 6½-hour battery lasts long enough to odorlessly keep a bedroom-size area mosquito-free for an entire evening — as long as there’s no breeze.