(e) The units shall contain no more than eighty minutes (four hundred eighty liters) of USP oxygen. All meetings of the board at which official action is taken and deliberation upon official business is conducted shall be open to the public.The average EMS response time in. "The minutes of a regular or special meeting of any public body shall be promptly prepared, filed, and maintained and shall be open to the public." Oxygen and oxygen equipment is covered under the Durable Medical Equipment benefit (Social Security Act §1861(s)(6)). Air Products provide essential industrial gases, related equipment and applications expertise to customers in dozens of industries.