Ultra Quiet 19dB: Why Toshiba Is the Quietest in Its Class
19dB — quieter than a falling leaf. How the Toshiba Daiseikai reaches the lowest noise level in the industry, and why that matters to how well you sleep.
Just How Quiet Is 19dB?
To make sense of 19dB, set it against everyday sounds:
- 10dB — ordinary breathing
- 19dB — Toshiba Daiseikai
- 20dB — a soft whisper
- 30dB — a library
- 40dB — an ordinary air conditioner
- 50dB — normal conversation
At 19dB the Toshiba Daiseikai is quieter than a human whisper. You have to stop and concentrate to hear it running at all.
The Technology Behind 19dB
Toshiba reaches ultra-quiet operation through four things:
1. A DC Hybrid Fan
A brushless DC motor drives the fan, giving smoother rotation and less vibration.
2. Aerodynamic Design
The fan blades are shaped through computer simulation to give optimal airflow with minimum turbulence and noise.
3. Quiet Compression
The Toshiba inverter compressor runs at a steady low speed, avoiding the on-off cycling that produces audible noise.
4. Vibration Insulation
A vibration-damping layer inside the indoor unit absorbs the vibration you would otherwise hear.
Why 19dB Matters
Sleep Quality
Studies show noise above 30dB can disrupt REM sleep — the phase that matters most for physical and mental recovery. At 19dB the Daiseikai keeps sleep undisturbed.
The Nursery
Babies are highly sensitive to sound. At 19dB a baby sleeps through without being woken by the unit.
Working From Home
For work at home, a lower ambient noise floor improves focus and productivity.
Which Model Is Quietest?
- Toshiba Daiseikai — 19dB (the quietest)
- Toshiba Haori — 21dB (very quiet)
- Toshiba Seiya — 23dB (quiet)
- Toshiba Mirai — 26dB (standard quiet)
What to Do Next
Settled on a model and a plan? Our certified technicians install across Malaysia, with full warranty and scheduled servicing included.
- See the full Toshiba model range
- Toshiba installation in Bangsar, Kuala Lumpur
- Toshiba installation in Johor Bahru
- Read next: Choosing a Toshiba by Room Size: The Capacity Guide
Every installation is completed by a certified technician and covers the bracket, copper piping and electrical work — there are no hidden costs once the quote is given.
Tell us your room size and budget on WhatsApp and we will reply with a fixed price including installation, usually within 30 minutes.