In October I bought myself a digital PF meter from Amazon. I did a little research online, talked to some friends, and then ordered the Microlife PF 100. I don’t remember to use it everyday, but I really like being able to see FEV1 along with the peak flow value.
I’ve found it interesting how the FEV1 value will change when my PF value stays relatively the same. This is often paired with me feeling worse. This extra data has also been helpful when checking in with my lung docs if I’m not doing well. The device holds 240 readings so you can always scan through your past numbers.
Supposedly you can use a provided USB cable to download your values to a computer. I’ve been storing my data at OurBreeze.com. It graphs everything out for you, will alert you based on your best values, and there’s even a forum to get advice from, and chat with fellow asthmatics and those who have breathing disorders. Be sure to check it out.