
Nihon Netsugen Systems
A Japanese pioneer in natural refrigerant technology, delivering innovative CO₂ and heat pump solutions for industrial refrigeration since 1987.
since 2023 · GWP 20
in 2025 · GWP 20
in 2025
ATMO Approved
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.
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.
What it adds up to.
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.

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.
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.
Work with Nihon Netsugen Systems
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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.
Gallery
Nihon Netsugen Systems in the field

























