TFA Reduces Antibody Production in Human Study at Unexpected Levels

This Week in Natural Refrigerants News: Friday July 3rd, 2025

The articles in the podcast are as follows: 1. ATMO America: M&M Carnot CO2 Chillers Cool 1.3MW Heat Load at Evocative’s California Data Center [https://naturalrefrigerants.com/news/mm-carnot-co2-chillers-1-3mw-evocative-california-data-center/] 2. ATMO America: Alternative Cooling Start-Ups Seek Industry Partners to Commercialize Technology [https://naturalrefrigerants.com/news/atmo-america-alternative-cooling-start-ups-seek-industry-partners-to-commercialize-technology/] 3. AHRI and Other Trade Groups Challenge U.S. EPA’s Reconsideration of Technology Transitions Rule [https://naturalrefrigerants.com/news/ahri-and-other-trade-groups-challenge-u-s-epas-reconsideration-of-technology-transitions-rule/] 4. Volkswagen Canada Offers the ID.4 EV with a CO2 Heat Pump [https://naturalrefrigerants.com/news/volkswagen-canada-offers-the-id-4-ev-with-a-co2-heat-pump/] 5. Systemair Launches Packaged Air-Handling Unit with Integrated R290 Heat Pump [https://naturalrefrigerants.com/news/systemair-packaged-air-handling-unit-with-r290-heat-pump/]

Volkswagen Canada Offers the ID.4 EV with a CO2 Heat Pump

There are more than 1 million Volkswagen electric vehicles (EVs) on the road with CO2 (R744) heat pumps [https://macsmobileairclimate.org/2025/09/30/vw-selling-id-4-evs-in-canada-with-r-744-co2-heat-pump-systems/], which includes a handful in Canada [https://macsmobileairclimate.org/2025/09/30/vw-selling-id-4-evs-in-canada-with-r-744-co2-heat-pump-systems/]. Volkswagen Canada has offered the ID.4 since 2021, and many of the vehicles sold in Canada have been equipped with a CO2 heat pump, according to the Mobile Air-Conditioning Society.  Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/volkswagen-canada-offers-the-id-4-ev-with-a-co2-heat-pump/] #GoNatRefs #NaturalRefrigerants #CO2 #Heatumps #Volkswagen #electricvehicles

AHRI and Other Trade Groups Challenge U.S. EPA’s Reconsideration of Technology Transitions Rule

The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) and the Alliance for Responsible Atmospheric Policy on June 25 petitioned [https://assets.informz.net/AHRINET/data/images/Press%20Release/20260626_ReviewofEPARule/AHRI%20and%20Alliance%20v.%20EPA%20-%20Petition%20for%20Review%20In%20The%20D.C.%20Circuit%20-%20FINAL%20(002).pdf] the United States Court of Appeals for the District of Columbia Circuit to review a final reconsideration rule [https://naturalrefrigerants.com/news/u-s-epa-announces-final-revision-of-technology-transitions-rule-delaying-use-of-low-gwp-refrigerants/]revising the 2023 Technology Transitions Rule that was announced on May 21 by the U.S. Environmental Protection Agency (EPA). Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/ahri-and-other-trade-groups-challenge-u-s-epas-reconsideration-of-technology-transitions-rule/] #GoNatRefs #NaturalRefrigerants #EPA #AHRI

Danfoss Launches Transcritical CO2 Oil Separator, Receiver Line Rated to 140Bar

Danish component manufacturer @Danfoss [https://naturalrefrigerants.com/partner/danfoss/] has launched a new line of oil separators and receivers for transcritical CO2 (R744) systems, rated at a maximum working pressure of 140bar (2,030psi). Suitable for CO2 chillers, heat pumps and refrigeration systems, the new OUB line spans capacities from 89 to 1,400kW (25.3 to 398.1TR) and is available in both serviceable and hermetic models.  Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/danfoss-transcritical-co2-oil-separator-receiver-line-140bar/] #GoNatRefs #NaturalRefrigerants

Systemair Launches Packaged Air-Handling Unit with Integrated R290 Heat Pump

Global HVAC supplier Systemair has launched Geniox HP DFN, a new packaged air-handling unit (AHU) with an integrated propane (R290) heat pump. Systemair positions the R290-based unit as a future-proof solution that complies with relevant EU environmental regulations; it meets strict f-gas requirements and is PFAS-free under REACH (Registration, Evaluation, Authorization and Restriction of Chemicals), the EU’s chemicals regulation. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/systemair-packaged-air-handling-unit-with-r290-heat-pump/]