Can breathe better
The company I work for purchases these for us. They are good to filter out just about all the harmful gases I breathe on a daily basis. I weld on magnesium , stainless, D2, carbon, galvanized , and often times through hazardous paint. Before using this system I felt horrible; waking up in the middle of the night coughing up black gunk. Been using this for about a year and don't wake up coughing anymore. The price is a bit steep but worth the money if you think about the medical bills your saving yourself from. I replaced the grommets with stainless steel washers and bolts because whatever 3M is using for the grommets just rusts over the summer months when it's super hot. The air ventilation in this is great but will not cool you down in the summer, it's just a fan that pushes whatever air temperature in the room is onto your face. You can switch the direction of the airflow to either blow down onto your face or onto the lens to defog it. The belt system sucks if your bent over for long periods of time, the leather is stiff and it has a tendency to ride to your lower back due to the weight of the lithium battery. The battery pack lasts for about 8 hours and I wouldn't turn the hood on until I'm welding; the rest of the time I leave the hood flipped up. I like being able to have grind settings and weld settings I can access with just a flip of the visor, let's me be able to change modes without having to stop welding. The visor on this hood is my favorite feature, when you grind you can opt to either flip the visor up of just change it to grind setting. The air hose is nothing special and I recommend wrapping it in Kevlar tape if you work in close quarters with other welders. The air filters for these are not cheap so I recommend stocking up on the prefilters. The air filter can last you up to 6 months if you change out your prefilters about once a month. About every 3 hours I take the prefilters out and blow it with an air wand to knock the debris out. DO NOT BLOW ON THE ACTUAL AIR FILTER. It will immediately ruin them, it will basically blow the harmful dust it's fought and push it directly into the fan motor and not only potentially ruin your motor but could push a concentrated dose of dust right into your face. Spray out prefilters but not the actual filter itself. I hope I hit all the points and left a fair and honest review. Personally for the price, I don't feel these are as well designed as could be. They aren't super heavy, it's just that the weight isn't evenly dispersed; probably best to get the backpack harness.
ProsVisor, hard hat and suspension, breathe fresh air, easy on off, blue flame welding lens. Lung saver
ConsSmall parts that hold the belt together rust. Cost for replacement parts.