diff --git a/requirements/_recommend.txt b/requirements/_recommend.txt
new file mode 100644
index 0000000..f16ece0
--- /dev/null
+++ b/requirements/_recommend.txt
@@ -0,0 +1,8 @@
+## for all checks
+nagiosplugin
+
+## for api checks
+requests
+
+## for snmp checks
+easysnmp
\ No newline at end of file
diff --git a/requirements/airq.txt b/requirements/airq.txt
new file mode 100644
index 0000000..33a8038
--- /dev/null
+++ b/requirements/airq.txt
@@ -0,0 +1,2 @@
+## for airq
+pip3 install git+https://github.com/heinemml/CO2Meter
\ No newline at end of file