This Formaldehyde Test Kit provides a simple and effective way to detect harmful HCHO gas indoors. Perfect for use in newly renovated houses, offices, or areas with new furniture, it helps you identify unsafe air quality levels. Each kit tests one room, giving you fast and accurate results to keep your home environment safe and healthy. Main Features: Accurate Detection – Measures formaldehyde levels from 0.00–1.80mg/m³. Quick & Easy to Use – Simple self-test kit with clear results in minutes. Home & Office Use – Suitable for living spaces up to 270 sq. ft. (25m²). Portable Design – Lightweight and compact for convenient use in multiple rooms. Colorimetric Card – Comes with a 20-level chart for easy result comparison. Safe & Affordable – Cost-effective solution for indoor air quality monitoring. Specifications: Detection Range: 0.00–1.80 mg/m³ Applicable Space: 25m³ (approx. 270 sq. ft.) Package Size: 10 × 7.5 × 2.5 cm