This is a Mobile Equipment and it must be temporary. For example, each backpack works only a certain amount of time (upgrades possible) and then requires recharging, on the ship or on the base. If I want to live on this planet, I have to build a heater, a cooler or an air purifier. (It is also desirable gravity generator). Moreover, the planet can have a "pure zone", such as warm sites among snow. Now everything is too easy.