Ventilation and dust protection The vent cover features appropriately sized mesh holes that provide airflow while effectively keeping dust and spiders out, ensuring a clean environment for your plants. Elastic band and buckle design An adjustable elastic band and secure fixed buckles offer a custom fit on various vent pipe openings, preventing the cover from falling off and maintaining consistent performance. Waterproof and long lasting material Constructed from waterproof Oxford cloth and resistant flat mesh cloth, this vent cover withstands humid conditions without damage. The nylon rope elastic band adds lasting durability. Easy installation and cleaning Simply place the cover over your plant grow tent vent pipe opening, tighten the elastic band and buckle for a secure fit. When dirty, it can be washed by hand or machine for quick reuse. Compatible sizing and practical notes Adjustable to fit a range of vent pipe openings used on grow tents, making it suitable for most standard setups. Use scenarios Grow tents: Cover vent pipes to maintain airflow while preventing dust and pests from entering the grow space. Humid environments: Use in greenhouses or hydroponic rooms where moisture resistance is important. Reuse between cycles: Easy to clean and reinstall between plant growth cycles for ongoing protection.