Essential Roomtones is a cinematic indoor ambience and room tone sound effects pack from Big Room Sound, designed to add realistic background presence, depth and continuity to interior scenes.

Includes 35 samples
Supplied as WAV files
Main environments include:
Living Rooms & Apartments
Bedrooms
Basements
Offices & Computer Rooms
Townhouses
Warehouses
Auditoriums
Utility Rooms
Suburban Interior Air
Includes different environmental characteristics such as air tone, AC/fan noise, ventilation, electrical hum and mechanical pulses.
Recordings are relatively long for easy ambience layering; examples on the official listing range from around 17 seconds to over 2 minutes.
Useful for dialogue editing, filling production-audio gaps, establishing interior environments, films, TV, documentaries, games and general Foley/sound design
Works with any DAW, and purchased Splice samples are downloaded as .wav files.
Splice states its sounds are royalty-free and cleared for commercial use, subject to its licensing terms.

Field: Sound Effects → Room Tones / Indoor Ambiences / Background Atmospheres
Details: https://splice.com/sounds/packs/big-room-sound/brs-roomtones/samples