Sustainability Doesn’t Mean Sacrifice: Our Cold Storage Solution Is the Best of All Worlds

Sustainability Issue

By Joshua Lewis, Global Product Manager of Ultra-Low-Temperature Freezers

World leaders at the 2019 G7 meeting made climate change a focus and brought renewed attention to one of the modern world’s leading contributors: cooling.

Safeguarding our depleting ozone layer continues to be a top priority. Several countries attending the G7 pledged to improve the cooling sector by phasing down refrigerants like hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs), which have been shown to negatively impact the ozone layer.

The Significant New Alternatives Policy (SNAP) is part of the 1990 amendments to the U.S. Clean Air Act. The Act calls for states and the U.S. Environmental Protection Agency (EPA) to solve multiple air pollution problems through programs based on the latest science and technology information.

SNAP requires the identification of known ozone-depleting substances (ODS) and an evaluation of substitutes in applications that have historically used ODS. Evaluation includes overall human health and the environmental impact of both existing and new alternatives. The EPA has approved various natural refrigerants for refrigeration sealed systems and has established phase-out dates for HFC insulating foams.

Thermo Fisher Scientific is leading the cold storage industry with the transition to cleaner, lower energy SNAP-compliant refrigerants and zero-waste manufacturing.

The Thermo Scientific TSX and STP series ultra-low-temperature (ULT) platforms use SNAP-compliant green hydrocarbon (HC) refrigerants: propane and ethane. Hydrocarbon ULTs reduce CO2 emissions by over 30%*, and ENERGY STAR models can save you more than 50% in energy usage costs.

In addition to being better for the environment, HC refrigerants promote lower temperatures and pressures within the refrigeration system. This drastically reduces the mechanical stress on refrigeration components and can extend the life of the system. Today’s models that have HC refrigerants along with vacuum panel insulation demonstrate less peak variation, lower noise, higher capacity, and improved overall performance.

Thermo Scientific TSX and TSG Series Refrigerators and Freezers are also ENERGY STAR certified and SNAP compliant. These high-performance refrigerators and freezers are available as large-format models and undercounter units, so there’s a model for every lab and need.

Models with HC refrigerants use over 40% less energy in comparison to older Thermo Scientific models that use HFC. Our freezers and refrigerators are also manufactured in a zero waste to landfill facility: more than 90% of the waste generated at the North Carolina manufacturing site is diverted from landfills.

Thermo Scientific cold storage equipment combines the best of sample protection and sustainability, delivering reliable and precise cooling:

  • SNAP compliant with natural refrigerants that protect the ozone layer
  • ENERGY STAR certified with significant cost savings over older models
  • Manufactured in a zero-waste facility 

Let Thermo Fisher Scientific help you bring the green movement to your laboratory.

Visit or to learn more about TSX series products, and visit or to learn more about STP Series products.

*Data based on internal testing from 2017 to 2019. Reduction in CO2 emissions is dependent on freezer size.