Shouldn't Airbus recommend Pack Flow HI to increase air flow for all flights with HEPA filters ? See EASA SIB link
Please also if any engineers have info on why Airbus has not issued a operational recommendation in this Covid 19 environment.
Apparently Airbus tech has stated that Pack flow normal is enough, unless of course the aircraft is full.
https://ad.easa.europa.eu/blob/EASA_..._1¨Furthermore, when HEPA filters are installed, recirculation fans should not be stopped, but increased fresh air flow should be promoted by selecting high PACK FLOW, whenever possible. Operators should confirm with the aircraft manufacturers the practice of selecting the configuration high PACK FLOW and follow their instructions for continuous use.¨