"Chair" - what is it, definition of the term
«Chair» refers to a seating device comprising a horizontal platform for the buttocks, a vertical support for the back, and typically four legs or a single pedestal; its purpose is to hold a person upright while seated, and it may incorporate armrests, cushions, or adjustable components, fabricated from materials such as wood, metal, plastic, or composites.
Detailed information
The seating apparatus designed for human use typically consists of a load‑bearing frame, a horizontal platform for the body, and an optional vertical support for the back. Common constructions employ wood, metal, or engineered composites, while surface coverings range from fabric and leather to synthetic polymers.
Structural elements include four supports (or a central pedestal), a planar surface that distributes weight, a rear panel that provides lumbar support, and fastening mechanisms that join components. Dimensions adhere to ergonomic standards that accommodate a range of body sizes and postures.
Insect habitats frequently develop on such furniture when it serves as a resting point for hosts or a refuge for arthropods. Ticks, bugs, lice, and fleas can cling to fabric fibers, accumulate in seams, or hide within cushions. These pests may be transferred to occupants during prolonged contact, especially in environments with high humidity or inadequate sanitation.
Preventive actions:
- Regular vacuuming of upholstery and crevices to remove detached organisms and eggs.
- Periodic laundering of removable covers at temperatures exceeding 60 °C.
- Application of approved insecticidal treatments to frame joints and underside surfaces.
- Selection of tightly woven or synthetic fabrics that reduce attachment sites.
- Inspection of legs and base for debris that could conceal larvae or nymphs.
Maintenance protocols recommend a biweekly cleaning schedule, followed by a quarterly deep‑cleaning cycle that includes steam treatment or professional pest‑control services. Documentation of inspection results ensures traceability and compliance with health‑safety guidelines.