The best replacement for inflator is compressor.

The best alternatives to inflator are rated as following:
★★★★★  compressor
★★★  mini pump

Your alternative for inflator is not listed? Suggest!
Speaking about inflator, one probably shouldn't forget about jump starter.

Other search terms related to inflator and their ratings are:
★★★★★ jump starter
You have in mind a companion for inflator and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of inflator in all years. Click on graph for more.
inflator
compressor
mini pump