Accelerating Clean Cooling & Heating

01

Why this matters

Most refrigeration runs on chemicals that warm the planet, or quietly poison it.

HFCs warm the atmosphere up to 14,000× more than CO₂. Their HFO replacements break down into TFA, a forever chemical now detectable in rain, ice, and human blood.

The answer

CO₂, ammonia, hydrocarbons. Proven for over a century. They don't warm the planet, and they don't leave a forever chemical behind.

Natural refrigerants avoid both.

02
Primary metric

A year of avoided emissions, made visible.

GHG emissions Nihon Netsugen Systems avoided over the lifetime of 2025's equipment placed in the market.

Nihon Netsugen Systems · 2025

267,000metric tons of CO₂e avoided.

Over the lifetime of 2025's equipment placed in the market. The comparisons that follow show what that volume actually looks like.

In real-world terms

What it adds up to.

36k
homes / year
powered for a year on the same footprint
62.2k
petrol cars off the road
for one year of driving emissions avoided
1.1B
km not driven
distance equivalent never burned in a tank
2.0%
of Yokohama City's
annual emissions in 2021
03
Hidden pollutant

TFA: the forever chemical you haven't heard of.

Trifluoroacetic acid is an ultra-short-chain PFAS that forms as a breakdown product of synthetic refrigerants and accumulates in rainwater. Natural refrigerants don't break down into TFA.

Stage 1 · Emission

HFCs and HFOs leak from refrigeration systems.

Synthetic refrigerants escape over the lifetime of every system: installation, service, end-of-life. The leaks are small, but they add up across millions of installations worldwide.

Refrigerant gas leaking from cooling equipment
04

Growth

Cumulative avoided CO₂e emissions over the years.

Nihon Netsugen Systems has been ATMO Approved since 2024, now 3 consecutive years of independently verified impact.

0
metric tons of CO₂e · GWP 20 years
0
metric tons of CO₂e · GWP 100 years
06
The company

Nihon Netsugen Systems: company profile.

Founded in 1987, Nihon Netsugen Systems has grown into one of Japan's leading companies in large-size heat pumps and industrial refrigeration. In 1999, the company established a partnership with GEA in Germany, and in 2012 began R&D of CO₂ condensing units, with a focus on achieving stable performance in hot summer climates while delivering year-round energy savings. This effort led to the 2015 launch of the "Super Green" — the company's first CO₂ condensing unit — in the Japanese market. Nihon Netsugen Systems remains committed to science-driven innovation, actively contributing to SDGs and carbon neutrality through the continued development of the Super Green series.

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Become ATMO Approved

Does your company use natural refrigerants?

The ATMO Approved label is independently verified. Not self-declared, not marketing. If your equipment runs on CO₂, ammonia, hydrocarbons, or water, you may qualify.