Last year was terrible for the electronic cigarette industry, and worse for the hundreds of people who became very ill after using the devices.

The Centers for Disease Control and Prevention confirmed 64 deaths in the U.S. from vaping-related illnesses. The majority of people who got sick were using black market or modified e-liquids or products that contained tetrahydrocannabinol (THC).

A new federal law raised the legal age to buy tobacco products in the U.S. from 18 to 21, and the Food and Drug Administration banned most flavored e-cigs. Juul Labs, which dominates the e-cig market and is largely blamed for America’s vaping epidemic, voluntarily discontinued its flavored products, with the exception of tobacco and menthol flavors.

Many competing brands including Puff, blu, Posh, and Stig, now produce pre-charged, pre-filled vaping devices, and they’re cheaper than Juul pods.