1-way air intake valve provides unidirectional airflow to prevent external backflow and protect your photography equipment. Durable rubber construction offers high elasticity for repeated use and a long service life without compromising quality. Ergonomic curved design and slip grip deliver a comfortable, stable hold and reduce hand fatigue during extended use. Advanced design delivers powerful, consistent airflow to lift away stubborn dust and debris, delivering reliable cleaning results. Specifications and compatibility - Material: durable rubber - Valve: one-way air intake - Applications: suitable for cleaning DSLR/mirrorless cameras, lenses, filters, viewfinders, and other photography gear Use scenarios - Quick on-location dust removal: clear dust from camera bodies, lenses, and filters before shoots. - Studio maintenance: remove particles from optics and viewfinders under bright inspection light. - Travel and field work: keep camera gear dust-free in bags and during outdoor shoots.